Neighbours of Cm(add9)
Every chord one voice of Cm(add9) reaches by a semitone or a whole tone, on C and so for every root: the voice that steps, the notes that result, and what they spell.
Cm(add9) holds C D Eb G. 6 chords are one semitone away and 6 chords are one whole tone away; 4 of them spell a chord type and 0 realise a transform a source names.
One semitone away
| Voice | Steps to | Notes | Spells | Named transform |
|---|---|---|---|---|
| C | B, -1 | B D Eb G | Ebmaj7#5 | none named |
| C | C#, +1 | C# D Eb G | no chord type | none named |
| D | Db, -1 | C Db Eb G | no chord type | none named |
| Eb | E, +1 | C D E G | Cadd9, Em7#5, G6sus4 | none named |
| G | Gb, -1 | C D Eb Gb | no chord type | none named |
| G | G#, +1 | C D Eb G# | no chord type | none named |
One whole tone away
| Voice | Steps to | Notes | Spells | Named transform |
|---|---|---|---|---|
| C | Bb, -2 | Bb D Eb G | Ebmaj7 | none named |
| D | E, +2 | C E Eb G | no chord type | none named |
| Eb | Db, -2 | C D Db G | no chord type | none named |
| Eb | F, +2 | C D F G | F6sus2, G7sus4 | none named |
| G | F, -2 | C D Eb F | no chord type | none named |
| G | A, +2 | C D Eb A | no chord type | none named |
No source this site cites names a transform for this chord type, so every step here stays unnamed.