Chord Study 7 - Minor+Major 7th and Minor 9th

Minor+Major 7th

This chord is formed by adding the major 7th note of the scale to the minor chord or by moving the 8th note one fret lower. It is often written with +M7 after the minor key like Am+M7, Dm+M7, Fm+M7 and etc.

Minor 9th

This chord is formed by adding the 9th note of the scale to the minor 7th chord. It is indicated by writting m9 to the key like Am9, Gm9, Dm9 and etc.