A-sharp or A♯ refers to:
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A♯ (musical note)
A (A-sharp; French: ) is the eleventh semitone of the solfège.
This note lies a chromatic semitone above A (musical note), A and a diatonic semitone below B (musical note), B, thus being enharmonic to B♭ (musical note), B (French: ).
When ...
,
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A-sharp major, enharmonic key to B-flat major
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A-sharp minor
A-sharp minor is a minor musical scale based on A, consisting of the pitches A, B, C, D, E, F, and G. Its key signature has seven sharps.
Its relative major is C-sharp major (or enharmonically D-flat major). Its parallel major, A-shar ...
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A Sharp (.NET), a port of the Ada programming language to the .NET environment
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A Sharp (Axiom), a programming language for the Axiom computer algebra system
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