Tuning-specific arpeggio diagram

C Dominant 9 Arpeggio in 7-String Drop A Tuning

C Dominant 9 Arpeggio in 7-String Drop A Tuning shows the same c dominant 9 arpeggio chord tones across 7 strings tuned A E A D G B E. The seventh string adds lower chord-tone positions below a six-string layout while keeping the upper strings familiar.

Chord tones: C, E, G, Bb, D
Formula: 1 3 5 b7 9
Semitones: 0 4 7 10 14
Chord symbols: C9
Tuning: A E A D G B E
Strings: 7
Open pitch range: A1 to E4
24-fret range: A1 to E6

Open strings and root positions

4 of the 7 open strings belong to C Dominant 9 Arpeggio: string 6 E (3), string 4 D (9), string 3 G (5), and string 1 E (3). None of those open-string tones is the C root, so the root must be fretted on every string.

String 6E3

String 4D9

String 3G5

String 1E3

First root on each string

String 7Fret 3

String 6Fret 8

String 5Fret 3

String 4Fret 10

String 3Fret 5

String 2Fret 1

String 1Fret 8

Low-string pattern

On the lowest A string, the first-octave arpeggio pattern falls at frets 1, 3, 5, 7, and 10, with the C root at fret 3. On the highest E string, the first C is at fret 8.

Fret 1Bbb7

Fret 3C1

Fret 5D9

Fret 7E3

Fret 10G5

Practice this tuning-specific layout

Play C Dominant 9 Arpeggio on the low A string at frets 1, 3, 5, 7, and 10, saying each note name and degree aloud.
Build a phrase that lets E on open string 6 ring, then connect it to the nearest C root and two other arpeggio tones.
Connect the C root positions on strings 7 through 1 at frets 3, 8, 3, 10, 5, 1, and 8, adding the nearest arpeggio tone between each pair of roots.