A-flat
noun1
Entertainment, Lifestyle, Music A tone one semitone below A, between G and A, denoted A♭.
- The bassoon came in on a low A-flat.
2
Entertainment, Lifestyle, Music A key or other mechanism for producing an A-flat.
- I had to take it to the shop because the A-flat was stuck.
3
Entertainment, Lifestyle, Music The key of A-flat major.
- We will now hear the third sonata, in A-flat.
- Derived terms
- A-flat major, A-flat minor