Guitar Chord Dictionary: A# Minor Major Seventh Chords
The A#m(maj7) chord (A# minor major seventh) is spelled A#, C#, E# and G##. It sounds identical to Bbm(maj7), whose notes Bb, Db, F and A are plain to read.
The major seventh above A# is G##, a double sharp, and with the E# in the stack the sharp version is clumsy to read. The A# melodic minor scale contains all four notes, so the sound is no different from the flat version, only the notation. The chord is the root, minor third, fifth and major seventh. The minor third, C#, is the same pitch as Db.
A# minor major 7th guitar chord is also written as A#m(maj7), A#mM7, A#minmaj7 or A#-Δ7.
A# m(maj7) chord Notes:
Tones of the Minor Major Seventh chord:
Formula: 1 b3 5 7
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FAQ
What notes does A#m(maj7) contain?
A#m(maj7) is spelled A#, C#, E# and G##. The G## is the major seventh and sounds like A, and the E# is the fifth and sounds like F.
Why does A# minor major seventh have a double sharp?
The seventh of an A chord takes the letter G. A major seventh up from A# is eleven semitones away, which is G## and sounds like A. Writing A would repeat the root's letter.
Is A#m(maj7) the same as Bbm(maj7)?
Yes. A# and Bb are one pitch, so the chords sound the same. Bbm(maj7) is spelled Bb, Db, F and A, which avoids the double sharp and makes it easier to read.
Which scale can be used with A#m(maj7)?
A# melodic minor does: A#, B#, C#, D#, E#, F## and G##. All four chord tones are in it, as the first, third, fifth and seventh degrees.
How does A#m(maj7) differ from A#m7?
A#m7 ends on the minor seventh G#. A#m(maj7) raises that note by a semitone to G##, so the chord has a major seventh over a minor triad and sounds tenser.
