A♯ minor has 7 sharps — F♯, C♯, G♯, D♯, A♯, E♯, B♯. Here's the signature on the staff, the full scale, its relative major, and the trick to recognize it instantly.
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A♯ minor borrows its 7 sharps straight from its relative major, C♯ major. Beyond the signature, minor keys typically raise the seventh degree into a leading tone, so expect an extra accidental in the music that the key signature never shows.
The A♯ minor scale runs A♯, B♯, C♯, D♯, E♯, F♯, G♯. Every sharpened note in the piece takes the key's accidentals automatically, which is exactly what the signature saves you from writing note by note.
A♯ minor shares its signature — 7 sharps — with its relative major, C♯ major, a minor third above the tonic. They use the same seven pitches; what tells them apart is which note the music settles on and treats as home.
Neighboring keys on the circle of fifths
A♯ minor has 7 sharps — F♯, C♯, G♯, D♯, A♯, E♯, B♯.
The relative major of A♯ minor is C♯ major — it shares the identical key signature (7 sharps).
The A♯ minor scale is A♯, B♯, C♯, D♯, E♯, F♯, G♯.
Keep practicing: key signature quiz · circle of fifths · key trainer
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