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E-sharp phrygian 7th chords

The Solution below shows the E-sharp phrygian mode 7th chords, (i7, II7, III7, iv7, vø7, VI7, vii7) on a piano, with mp3 and midi audio.

The Lesson steps then explain the 7th chord construction from this mode, and how to name the quality of each chord based on note intervals.

For a quick summary of this topic, and to see the chord quality chart for this mode, have a look at Mode chord.

Keys in this mode
KeyCC#DbDD#EbE[E#]FbFF#GbGG#AbAA#BbBB#Cb

Solution - 7 parts

1. E-sharp phrygian chord i7

This step shows the tonic 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord i7 is the E# min 7 chord, and contains the notes E#, G#, B#, and D#.

This tonic 7th chords root / starting note is the 1st note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 1 is 'i', and is used to indicate this is the 1st chord in the mode. It is in lower case to denote that the chord is a minor chord.

E-sharp phrygian 7th chord 1 is E-sharp minor 7th

Chord names for E-sharp phrygian chord 1
Chord positionLinka/b/c/d notationFigured bass notation
Root positionE# minor 7th chord in root positioniai7
1st inversionE# minor 7th chord in 1st inversionibi65
2nd inversionE# minor 7th chord in 2nd inversionici43
3rd inversionE# minor 7th chord in 3rd inversionidi2
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2. E-sharp phrygian chord II7

This step shows the supertonic 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord II7 is the F# maj 7 chord, and contains the notes F#, A#, C#, and E#.

This supertonic 7th chords root / starting note is the 2nd note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 2 is 'II', and is used to indicate this is the 2nd chord in the mode. It is in upper case to denote that the chord is a major chord.

E-sharp phrygian 7th chord 2 is F-sharp major 7th

Chord names for E-sharp phrygian chord 2
Chord positionLinka/b/c/d notationFigured bass notation
Root positionF# major 7th chord in root positionIIaII7
1st inversionF# major 7th chord in 1st inversionIIbII65
2nd inversionF# major 7th chord in 2nd inversionIIcII43
3rd inversionF# major 7th chord in 3rd inversionIIdII2
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3. E-sharp phrygian chord III7

This step shows the mediant 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord III7 is the G# dom 7 chord, and contains the notes G#, B#, D#, and F#.

This mediant 7th chords root / starting note is the 3rd note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 3 is 'III', and is used to indicate this is the 3rd chord in the mode. Just like a major chord, the dominant 7th chord is constructed using a major third interval,so the roman numeral is shown in upper case.

E-sharp phrygian 7th chord 3 is G-sharp dominant 7th

Chord names for E-sharp phrygian chord 3
Chord positionLinka/b/c/d notationFigured bass notation
Root positionG# dominant 7th chord in root positionIIIaIII7
1st inversionG# dominant 7th chord in 1st inversionIIIbIII65
2nd inversionG# dominant 7th chord in 2nd inversionIIIcIII43
3rd inversionG# dominant 7th chord in 3rd inversionIIIdIII2
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4. E-sharp phrygian chord iv7

This step shows the subdominant 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord iv7 is the A# min 7 chord, and contains the notes A#, C#, E#, and G#.

This subdominant 7th chords root / starting note is the 4th note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 4 is 'iv', and is used to indicate this is the 4th chord in the mode. It is in lower case to denote that the chord is a minor chord.

E-sharp phrygian 7th chord 4 is A-sharp minor 7th

Chord names for E-sharp phrygian chord 4
Chord positionLinka/b/c/d notationFigured bass notation
Root positionA# minor 7th chord in root positionivaiv7
1st inversionA# minor 7th chord in 1st inversionivbiv65
2nd inversionA# minor 7th chord in 2nd inversionivciv43
3rd inversionA# minor 7th chord in 3rd inversionivdiv2
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5. E-sharp phrygian chord vø7

This step shows the dominant 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord vø7 is the B# half-dim7 chord, and contains the notes B#, D#, F#, and A#.

This dominant 7th chords root / starting note is the 5th note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 5 is 'v', and is used to indicate this is the 5th chord in the mode. Just like a minor chord, the half-diminished 7th chord is constructed using a minor third interval, so the roman numeral is shown in lower case.

The half-diminished symbol 'ø' is placed after the roman numerals to indicate this is a half-diminished 7th chord.

E-sharp phrygian 7th chord 5 is B-sharp half-diminished 7th

Chord names for E-sharp phrygian chord 5
Chord positionLinka/b/c/d notationFigured bass notation
Root positionB# half-diminished 7th chord in root positionvøavø7
1st inversionB# half-diminished 7th chord in 1st inversionvøbvø65
2nd inversionB# half-diminished 7th chord in 2nd inversionvøcvø43
3rd inversionB# half-diminished 7th chord in 3rd inversionvødvø2
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6. E-sharp phrygian chord VI7

This step shows the submediant 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord VI7 is the C# maj 7 chord, and contains the notes C#, E#, G#, and B#.

This submediant 7th chords root / starting note is the 6th note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 6 is 'VI', and is used to indicate this is the 6th chord in the mode. It is in upper case to denote that the chord is a major chord.

E-sharp phrygian 7th chord 6 is C-sharp major 7th

Chord names for E-sharp phrygian chord 6
Chord positionLinka/b/c/d notationFigured bass notation
Root positionC# major 7th chord in root positionVIaVI7
1st inversionC# major 7th chord in 1st inversionVIbVI65
2nd inversionC# major 7th chord in 2nd inversionVIcVI43
3rd inversionC# major 7th chord in 3rd inversionVIdVI2
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7. E-sharp phrygian chord vii7

This step shows the subtonic 7th chord of the E-sharp phrygian mode.

The E-sharp phrygian chord vii7 is the D# min 7 chord, and contains the notes D#, F#, A#, and C#.

This subtonic 7th chords root / starting note is the 7th note (or scale degree) of the E-sharp phrygian mode.

The roman numeral for number 7 is 'vii', and is used to indicate this is the 7th chord in the mode. It is in lower case to denote that the chord is a minor chord.

E-sharp phrygian 7th chord 7 is D-sharp minor 7th

Chord names for E-sharp phrygian chord 7
Chord positionLinka/b/c/d notationFigured bass notation
Root positionD# minor 7th chord in root positionviiavii7
1st inversionD# minor 7th chord in 1st inversionviibvii65
2nd inversionD# minor 7th chord in 2nd inversionviicvii43
3rd inversionD# minor 7th chord in 3rd inversionviidvii2
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Lesson steps

1. Piano key note names

This step shows the white and black note names on a piano keyboard so that the note names are familiar for later steps, and to show that the note names start repeating themselves after 12 notes.

The white keys are named using the alphabetic letters A, B, C, D, E, F, and G, which is a pattern that repeats up the piano keyboard.

Every white or black key could have a flat(b) or sharp(#) accidental name, depending on how that note is used. In a later step, if sharp or flat notes are used, the exact accidental names will be chosen.

Sharp and flat note names

The audio files below play every note shown on the piano above, so middle C (marked with an orange line at the bottom) is the 2nd note heard.

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2. E-sharp phrygian mode notes

This step shows the mode note names that will be used to construct all 7th chords that harmonize with those mode notes.

The piano keyboard below contains the notes of the E-sharp phrygian mode.

Starting from the 1st mode note, each lesson step below will take each note in turn and construct a 7th chord using that note as the root / starting note of that chord.

The 7th chord will be built using only the notes of the mode we are interested in.

Identifying the 4 notes in the chord

7th chords are built using the 1st, 3rd, 5th, and 7th notes of a mode, so the first 7th chord below will constructed a chord using notes E#, G#, B# and D#.

E-sharp phrygian mode
No.12345678
NoteE#F#G#A#B#C#D#E#

The second 7th chord below will repeat this, but this time starting on the 2nd note, so its notes will be F#, A#, C# and E# - ie. the 1st, 3rd, 5th and 7th positions relative to that 2nd root note.

This pattern is repeated for all 7 notes in the mode, resulting in 7 seventh chords.

E-sharp phrygian mode

Identifying the chord quality

Although the above method identifies each 7th chord notes from the mode used, it does not identify the complete chord name including its quality.

Should each 7th chord that we build be called diminished, half-diminished, minorminor-major, dominant, major, augmented, or augmented-major ?

Every 7th chord must have one of these quality names.

To decide the name the chord quality, each step below will use note intervals to calculate how many half-tones / semitones / piano keys between the root and the 3rd, 5th and 7th notes.).

Taken together, the combination of the 3rd, 5th and 7th note intervals will define the complete 7th chord quality name.

The steps below will show how this works for each 7th chord in turn, but in practice it might just be easier to memorize the triad quality table in the Mode chord summary for each mode type.

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3. 1st 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 1st scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 1st note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes E#, G#, B#, and D#.

E-sharp phrygian mode from note #1
No.1234567
NoteE#F#G#A#B#C#D#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between E# and G# is 3 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore minor, also called m3 for short. More details of this interval are at E#-min-3rd.

Repeating this for the 5th note / scale degree, the distance between E# and B# is 7 half-tones, and the note interval name is perfect (P5). More details of this interval are at E#-perf-5th.

Again the 7th note / scale degree, the distance between E# and D# is 10 half-tones, and the note interval name is minor (m7). More details of this interval are at E#-min-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having minor(m3), perfect(P5) and minor(m7) note intervals is minor 7th.

And so the complete 7th chord Name prefixes the root note, E#, onto this quality, giving us the E# min 7 chord.

E-sharp minor 7th chord

Scale chord names using a,b and c notation

The chord symbol i could be followed by the letter a to indicate that it is E# minor 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord ia.

Instead, i could be followed by the letter b to indicate that it is E# minor 7th chord in 1st inversion - E-sharp phrygian mode chord ib.

Letter c could be used to indicate that it is E# minor 7th chord in 2nd inversion - E-sharp phrygian mode chord ic.

Finally, letter d could be used to indicate that it is E# minor 7th chord in 3rd inversion - E-sharp phrygian mode chord id.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after i:

So in this key, i7 refers to the E# minor 7th chord in root position.

For 7th chord inversions, i65 refers to the E# minor 7th chord in 1st inversion, i43 refers to the E# minor 7th chord in 2nd inversion, and i2 refers to the E# minor 7th chord in 3rd inversion.

The next scale chord

The next step will need to calculate the 7th chord whose root / starting note is next mode note.

To do this, the first column we used in this step, E#, will be moved to the final column of the table.

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4. 2nd 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 2nd scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 2nd note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes F#, A#, C#, and E#.

E-sharp phrygian mode from note #2
No.1234567
NoteF#G#A#B#C#D#E#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between F# and A# is 4 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore major, also called M3 for short. More details of this interval are at F#-maj-3rd.

Repeating this for the 5th note / scale degree, the distance between F# and C# is 7 half-tones, and the note interval name is perfect (P5). More details of this interval are at F#-perf-5th.

Again the 7th note / scale degree, the distance between F# and E# is 11 half-tones, and the note interval name is major (M7). More details of this interval are at F#-maj-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having major(M3), perfect(P5) and major(M7) note intervals is major 7th.

And so the complete 7th chord Name prefixes the root note, F#, onto this quality, giving us the F# maj 7 chord.

F-sharp major 7th chord

Scale chord names using a,b and c notation

The chord symbol II could be followed by the letter a to indicate that it is F# major 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord IIa.

Instead, II could be followed by the letter b to indicate that it is F# major 7th chord in 1st inversion - E-sharp phrygian mode chord IIb.

Letter c could be used to indicate that it is F# major 7th chord in 2nd inversion - E-sharp phrygian mode chord IIc.

Finally, letter d could be used to indicate that it is F# major 7th chord in 3rd inversion - E-sharp phrygian mode chord IId.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after II:

So in this key, II7 refers to the F# major 7th chord in root position.

For 7th chord inversions, II65 refers to the F# major 7th chord in 1st inversion, II43 refers to the F# major 7th chord in 2nd inversion, and II2 refers to the F# major 7th chord in 3rd inversion.

The next scale chord

The next step will need to calculate the 7th chord whose root / starting note is next mode note.

To do this, the first column we used in this step, F#, will be moved to the final column of the table.

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5. 3rd 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 3rd scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 3rd note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes G#, B#, D#, and F#.

E-sharp phrygian mode from note #3
No.1234567
NoteG#A#B#C#D#E#F#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between G# and B# is 4 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore major, also called M3 for short. More details of this interval are at G#-maj-3rd.

Repeating this for the 5th note / scale degree, the distance between G# and D# is 7 half-tones, and the note interval name is perfect (P5). More details of this interval are at G#-perf-5th.

Again the 7th note / scale degree, the distance between G# and F# is 10 half-tones, and the note interval name is minor (m7). More details of this interval are at G#-min-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having major(M3), perfect(P5) and minor(m7) note intervals is dominant 7th.

And so the complete 7th chord Name prefixes the root note, G#, onto this quality, giving us the G# dom 7 chord.

G-sharp dominant 7th chord

Scale chord names using a,b and c notation

The chord symbol III could be followed by the letter a to indicate that it is G# dominant 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord IIIa.

Instead, III could be followed by the letter b to indicate that it is G# dominant 7th chord in 1st inversion - E-sharp phrygian mode chord IIIb.

Letter c could be used to indicate that it is G# dominant 7th chord in 2nd inversion - E-sharp phrygian mode chord IIIc.

Finally, letter d could be used to indicate that it is G# dominant 7th chord in 3rd inversion - E-sharp phrygian mode chord IIId.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after III:

So in this key, III7 refers to the G# dominant 7th chord in root position.

For 7th chord inversions, III65 refers to the G# dominant 7th chord in 1st inversion, III43 refers to the G# dominant 7th chord in 2nd inversion, and III2 refers to the G# dominant 7th chord in 3rd inversion.

The next scale chord

The next step will need to calculate the 7th chord whose root / starting note is next mode note.

To do this, the first column we used in this step, G#, will be moved to the final column of the table.

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6. 4th 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 4th scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 4th note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes A#, C#, E#, and G#.

E-sharp phrygian mode from note #4
No.1234567
NoteA#B#C#D#E#F#G#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between A# and C# is 3 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore minor, also called m3 for short. More details of this interval are at A#-min-3rd.

Repeating this for the 5th note / scale degree, the distance between A# and E# is 7 half-tones, and the note interval name is perfect (P5). More details of this interval are at A#-perf-5th.

Again the 7th note / scale degree, the distance between A# and G# is 10 half-tones, and the note interval name is minor (m7). More details of this interval are at A#-min-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having minor(m3), perfect(P5) and minor(m7) note intervals is minor 7th.

And so the complete 7th chord Name prefixes the root note, A#, onto this quality, giving us the A# min 7 chord.

A-sharp minor 7th chord

Scale chord names using a,b and c notation

The chord symbol iv could be followed by the letter a to indicate that it is A# minor 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord iva.

Instead, iv could be followed by the letter b to indicate that it is A# minor 7th chord in 1st inversion - E-sharp phrygian mode chord ivb.

Letter c could be used to indicate that it is A# minor 7th chord in 2nd inversion - E-sharp phrygian mode chord ivc.

Finally, letter d could be used to indicate that it is A# minor 7th chord in 3rd inversion - E-sharp phrygian mode chord ivd.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after iv:

So in this key, iv7 refers to the A# minor 7th chord in root position.

For 7th chord inversions, iv65 refers to the A# minor 7th chord in 1st inversion, iv43 refers to the A# minor 7th chord in 2nd inversion, and iv2 refers to the A# minor 7th chord in 3rd inversion.

The next scale chord

The next step will need to calculate the 7th chord whose root / starting note is next mode note.

To do this, the first column we used in this step, A#, will be moved to the final column of the table.

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7. 5th 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 5th scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 5th note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes B#, D#, F#, and A#.

E-sharp phrygian mode from note #5
No.1234567
NoteB#C#D#E#F#G#A#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between B# and D# is 3 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore minor, also called m3 for short. More details of this interval are at B#-min-3rd.

Repeating this for the 5th note / scale degree, the distance between B# and F# is 6 half-tones, and the note interval name is diminished (d5). More details of this interval are at B#-dim-5th.

Again the 7th note / scale degree, the distance between B# and A# is 10 half-tones, and the note interval name is minor (m7). More details of this interval are at B#-min-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having minor(m3), diminished(d5) and minor(m7) note intervals is half-diminished 7th.

And so the complete 7th chord Name prefixes the root note, B#, onto this quality, giving us the B# half-dim7 chord.

B-sharp half-diminished 7th chord

Scale chord names using a,b and c notation

The chord symbol vø could be followed by the letter a to indicate that it is B# half-diminished 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord vøa.

Instead, vø could be followed by the letter b to indicate that it is B# half-diminished 7th chord in 1st inversion - E-sharp phrygian mode chord vøb.

Letter c could be used to indicate that it is B# half-diminished 7th chord in 2nd inversion - E-sharp phrygian mode chord vøc.

Finally, letter d could be used to indicate that it is B# half-diminished 7th chord in 3rd inversion - E-sharp phrygian mode chord vød.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after vø:

So in this key, vø7 refers to the B# half-diminished 7th chord in root position.

For 7th chord inversions, vø65 refers to the B# half-diminished 7th chord in 1st inversion, vø43 refers to the B# half-diminished 7th chord in 2nd inversion, and vø2 refers to the B# half-diminished 7th chord in 3rd inversion.

The next scale chord

The next step will need to calculate the 7th chord whose root / starting note is next mode note.

To do this, the first column we used in this step, B#, will be moved to the final column of the table.

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8. 6th 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 6th scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 6th note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes C#, E#, G#, and B#.

E-sharp phrygian mode from note #6
No.1234567
NoteC#D#E#F#G#A#B#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between C# and E# is 4 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore major, also called M3 for short. More details of this interval are at C#-maj-3rd.

Repeating this for the 5th note / scale degree, the distance between C# and G# is 7 half-tones, and the note interval name is perfect (P5). More details of this interval are at C#-perf-5th.

Again the 7th note / scale degree, the distance between C# and B# is 11 half-tones, and the note interval name is major (M7). More details of this interval are at C#-maj-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having major(M3), perfect(P5) and major(M7) note intervals is major 7th.

And so the complete 7th chord Name prefixes the root note, C#, onto this quality, giving us the C# maj 7 chord.

C-sharp major 7th chord

Scale chord names using a,b and c notation

The chord symbol VI could be followed by the letter a to indicate that it is C# major 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord VIa.

Instead, VI could be followed by the letter b to indicate that it is C# major 7th chord in 1st inversion - E-sharp phrygian mode chord VIb.

Letter c could be used to indicate that it is C# major 7th chord in 2nd inversion - E-sharp phrygian mode chord VIc.

Finally, letter d could be used to indicate that it is C# major 7th chord in 3rd inversion - E-sharp phrygian mode chord VId.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after VI:

So in this key, VI7 refers to the C# major 7th chord in root position.

For 7th chord inversions, VI65 refers to the C# major 7th chord in 1st inversion, VI43 refers to the C# major 7th chord in 2nd inversion, and VI2 refers to the C# major 7th chord in 3rd inversion.

The next scale chord

The next step will need to calculate the 7th chord whose root / starting note is next mode note.

To do this, the first column we used in this step, C#, will be moved to the final column of the table.

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9. 7th 7th chord in E-sharp phrygian mode

This step shows how to identify the notes and the name of a 7th chord whose root note is the 7th scale degree of the E-sharp phrygian mode.

Identifying the 4 notes in the chord

The table below shows the E-sharp phrygian mode, ordered to show the 7th note as the first column in the table.

To identify the 7th chord note names, use the 1st, 3rd, 5th and 7th columns / scale degrees, which are notes D#, F#, A#, and C#.

E-sharp phrygian mode from note #7
No.1234567
NoteD#E#F#G#A#B#C#

Identifying the chord quality

To identify the 7th chord quality that has these notes, begin by counting the number of half-tones / semitones between the root and each of the notes.

For the 3rd interval (note 2 on the diagram) the distance between D# and F# is 3 half-tones.

Now look at the complete Note interval table, and identify the note interval that has a distance of 3 half-tones (first column), and with an interval no. of 3 (last column).

The note interval name for the 3rd note / scale degree is therefore minor, also called m3 for short. More details of this interval are at D#-min-3rd.

Repeating this for the 5th note / scale degree, the distance between D# and A# is 7 half-tones, and the note interval name is perfect (P5). More details of this interval are at D#-perf-5th.

Again the 7th note / scale degree, the distance between D# and C# is 10 half-tones, and the note interval name is minor (m7). More details of this interval are at D#-min-7th.

Finally, we have the name of the three note intervals of this 7th chord, and can now lookup the name of the 7th chord quality having these intervals.

Looking at the Seventh chord table, the name of the 7th chord quality having minor(m3), perfect(P5) and minor(m7) note intervals is minor 7th.

And so the complete 7th chord Name prefixes the root note, D#, onto this quality, giving us the D# min 7 chord.

D-sharp minor 7th chord

Scale chord names using a,b and c notation

The chord symbol vii could be followed by the letter a to indicate that it is D# minor 7th chord in root position (ie not inverted) - E-sharp phrygian mode chord viia.

Instead, vii could be followed by the letter b to indicate that it is D# minor 7th chord in 1st inversion - E-sharp phrygian mode chord viib.

Letter c could be used to indicate that it is D# minor 7th chord in 2nd inversion - E-sharp phrygian mode chord viic.

Finally, letter d could be used to indicate that it is D# minor 7th chord in 3rd inversion - E-sharp phrygian mode chord viid.

Scale chord names using figured bass notation

In place of the a-d symbols above, figured bass symbols could be used to indicate chord positions after vii:

So in this key, vii7 refers to the D# minor 7th chord in root position.

For 7th chord inversions, vii65 refers to the D# minor 7th chord in 1st inversion, vii43 refers to the D# minor 7th chord in 2nd inversion, and vii2 refers to the D# minor 7th chord in 3rd inversion.

This completes the set of all 7th chords that harmonize with the E-sharp phrygian mode.

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