Neighbours of Cmaj7
Every chord one voice of Cmaj7 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.
Cmaj7 holds C E G B. 6 chords are one semitone away and 8 chords are one whole tone away; 10 of them spell a chord type and 4 realise a transform a source names.
One semitone away
| Voice | Steps to | Notes | Spells | Named transform |
|---|---|---|---|---|
| C | C#, +1 | C# E G B | C#m7b5, Em6 | Q43 — Cannas & Andreatta |
| E | Eb, -1 | C Eb G B | Cm(maj7) | none named |
| E | F, +1 | C F G B | Cmaj7sus4 | none named |
| G | Gb, -1 | C E Gb B | Cmaj7b5 | none named |
| G | G#, +1 | C E G# B | Cmaj7#5 | none named |
| B | Bb, -1 | C E G Bb | C7 | P14 — Cannas & Andreatta |
One whole tone away
| Voice | Steps to | Notes | Spells | Named transform |
|---|---|---|---|---|
| C | Bb, -2 | Bb E G B | no chord type | none named |
| C | D, +2 | D E G B | G6, Em7 | L42 — Cannas & Andreatta |
| E | D, -2 | C D G B | Cmaj7sus2 | none named |
| E | F#, +2 | C F# G B | no chord type | none named |
| G | F, -2 | C E F B | no chord type | none named |
| G | A, +2 | C E A B | Am(add9) | none named |
| B | A, -2 | C E G A | C6, Am7 | R42 — Cannas & Andreatta |
| B | C#, +2 | C E G C# | no chord type | none named |
Transform names: A Generalized Dual of the Tonnetz for Seventh Chords: Mathematical, Computational and Compositional Aspects, Sonia Cannas and Moreno Andreatta.