Neighbours of Caug7
Every chord one voice of Caug7 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.
Caug7 holds C E G# Bb. 8 chords are one semitone away and 4 chords are one whole tone away; 8 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 E G# Bb | no chord type | none named |
| C | C#, +1 | C# E G# Bb | Bbm7b5, C#m6 | none named |
| E | Eb, -1 | C Eb G# Bb | Abadd9, Cm7#5, Eb6sus4 | none named |
| E | F, +1 | C F G# Bb | Bb7sus2 | none named |
| G# | G, -1 | C E G Bb | C7 | none named |
| G# | A, +1 | C E A Bb | no chord type | none named |
| Bb | A, -1 | C E G# A | Am(maj7) | none named |
| Bb | B, +1 | C E G# B | Cmaj7#5 | none named |
One whole tone away
| Voice | Steps to | Notes | Spells | Named transform |
|---|---|---|---|---|
| C | D, +2 | D E G# Bb | E7b5, Bb7b5 | none named |
| E | D, -2 | C D G# Bb | no chord type | none named |
| E | F#, +2 | C F# G# Bb | no chord type | none named |
| G# | Gb, -2 | C E Gb Bb | C7b5, F#7b5 | none named |
No source this site cites names a transform for this chord type, so every step here stays unnamed.