A-sharp

A-sharp or A♯ may refer to:

• A♯ (musical note)
• A-sharp major, enharmonic key to B-flat major
• A-sharp minor
• A Sharp (.NET), a port of the Ada programming language to the .NET environment
• A Sharp (Axiom), a programming language for the Axiom computer algebra system

See also

• "A♯1 Roller Rager", 2009 song by CKY

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