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Fig. 1 · Cmaj9 on the keyboard

piano chord

Cmaj9

C1E3G5B7D9

A major seventh with a ninth on top.

on guitaron ukulelethe scale

What is true of it

Cmaj9 is C, E, G, B and D — 1, 3, 5, 7 and 9 counted from C.

On an instrument that cannot reach all 5, the 5 and 1 go first, in that order.

C in other shapes

Cadd9added ninthC9dominant ninthCm9minor ninthCmajorCmminorCdimdiminished

C♯maj9D♭maj9Dmaj9D♯maj9E♭maj9Emaj9Fmaj9F♯maj9all 374