A-flat Definition

noun

(music) A tone four fifths below C in the cycle of fifths, intermediate between G and A, denoted A♭.

The bassoon came in on a low A-flat.
Wiktionary
(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.
Wiktionary
(music) The key of A-flat major.
We will now hear the third sonata, in A-flat.
Wiktionary

Alternative spelling of A-flat.

Wiktionary

Other Word Forms of A-flat

Noun

Singular:
a-flat
Plural:
a flats