What is "a-flat"

n. 1 (context music English) A tone four fifths below C in the cycle of fifths, intermediate between G and A, denoted A♭. 2 (context music English) A key or other mechanism for producing an A-flat. 3 (context music English) The key of A-flat major.

A-flat may refer to:

• The musical pitch A♭ (musical note)
  • A scale based on A-flat, such as A-flat major or A-flat minor
• A Flat (film), a 2010 Hindi film
• "A Flat", a song by Staind from Dysfunction