A# minor major 9th chord
A#mM9 chord for piano with keyboard diagram.
Explanation: The A sharp minor major ninth is a five-note chord. The chord has various abbreviations, including A#mMaj9, A#m(M9) and A#minmaj9.
Theory: The A#mM9 chord is constructed with a root, a minor third, a perfect fifth, a major seventh and a major ninth. It shares features of both minor and major ninth.
A#mM9
Notes: A# - C# - F - A - C / A# - C# - F - G## - B#
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