Explanations
Abbreviations are often used in chord names (alternative chord symbols in parentheses).
A# - A sharp major (A#△)
A#m - A sharp minor
A#7 - A sharp dominant seventh
A#m7 - A sharp minor seventh
A#maj7 - A sharp major seventh (A#△7)
A#mM7 - A sharp minor major seventh
A#6 - A sharp major sixth
A#m6 - A sharp minor sixth
A#6/9 - A sharp sixth/ninth (sixth added ninth)
A#5 - A sharp fifth
A#9 - A sharp dominant ninth
A#m9 - A sharp minor ninth
A#maj9 - A sharp major ninth
A#11 - A sharp eleventh
A#m11 - A sharp minor eleventh
A#13 - A sharp thirteenth
A#m13 - A sharp minor thirteenth
A#maj13 - A sharp major thirteenth
A#add - A sharp add
A#7-5 - A sharp seven minus five
A#7+5 - A sharp seven plus five
A#sus - A sharp suspended
A#dim - A sharp diminished (A#°)
A#dim7 - A sharp diminished seventh (A#°7)
A#m7b5 - A sharp minor seventh flat five (A#ø)
A#aug - A sharp augmented (A#+)
A#aug7 - A sharp augmented seventh