Neighbours of C7sus2
Every chord one voice of C7sus2 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.
C7sus2 holds C D G Bb. 8 chords are one semitone away and 4 chords are one whole tone away; 7 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 G Bb | no chord type | none named |
| C | C#, +1 | C# D G Bb | no chord type | none named |
| D | Db, -1 | C Db G Bb | no chord type | none named |
| D | D#, +1 | C D# G Bb | Eb6, Cm7 | none named |
| G | Gb, -1 | C D Gb Bb | Daug7 | none named |
| G | G#, +1 | C D G# Bb | no chord type | none named |
| Bb | A, -1 | C D G A | C6sus2, D7sus4 | none named |
| Bb | B, +1 | C D G B | Cmaj7sus2 | none named |
One whole tone away
| Voice | Steps to | Notes | Spells | Named transform |
|---|---|---|---|---|
| D | E, +2 | C E G Bb | C7 | none named |
| G | F, -2 | C D F Bb | Bbadd9, Dm7#5, F6sus4 | none named |
| G | A, +2 | C D A Bb | no chord type | none named |
| Bb | Ab, -2 | C D G Ab | Abmaj7b5 | none named |
No source this site cites names a transform for this chord type, so every step here stays unnamed.