A# minor major seventh
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The A#mM7 chord has the formula 1, b3, 5, 7 with notes A#, C#, F, A
Matching Scales: A# Harmonic MinorA# Melodic MinorF PersianF HinduA PersianA Jewish
The minor major seventh chord sees the most use in jazz and classical music. Some call it the Hitchcock chord for its use in the score for his 1968 thriller, Psycho.