Ab Minor Sixth Ninth (Abm6/9) chords on guitar
The Abm6/9 chord, Ab minor six nine, is spelled Ab, Cb, Eb, F and Bb. It has an Ab minor triad at the bottom, a major sixth (F) and a major ninth (Bb) on top, and no seventh.
The Cb is the minor third, and it is the same pitch as B, which is why the chord can appear as G#m6/9 in sharp keys. Both added notes are a whole step from a chord tone: the F above the Eb, and the Bb above the Ab. Solo with the Ab melodic minor scale, which holds every note.
Ab minor 6/9 guitar chord is also written as Abm6/9, Abm69, Abmin6/9 or Ab-6/9.
Notes that compose the Ab m6/9 chord:
Chord Formula:
Formula: 1 b3 5 6 9
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Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
What notes are in Abm6/9?
Ab, Cb, Eb, F and Bb. The F is the major sixth and the Bb is the major ninth, both added to the Ab minor triad.
Is Abm6/9 the same as G#m6/9?
Yes, they are enharmonic. G#m6/9 is G#, B, D#, E# and A#, which avoids Cb, so the better name depends on the key.
Why does Ab minor six nine contain Cb?
The minor third of Ab needs a C letter name, so it is Cb. It sounds the same as B, but Cb keeps the chord stacked in thirds.
What scale fits Abm6/9?
The Ab Dorian scale: Ab, Bb, Cb, Db, Eb, F and Gb. It contains all five chord notes, so melodies can stay inside it.
