What is "a-sharp"

n. (alternative spelling of A-sharp English)

A-sharp may refer to:

• A-sharp major, enharmonic to B-flat major
• A-sharp minor
• A♯ (musical note), musical pitch
• 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