MusicianCV · TRThree-sharp key pair
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Tonal centres and signatures
Three-sharp key pair · A / F♯m → F♯ C♯ G♯
A key signature sets default accidentals. Listen to phrase endings and accompaniment to establish the tonal centre. Different centres can share a signature.
Example
Key or operation / check · A / F♯m / F♯ C♯ G♯
Key or operation / checkA / F♯m F♯ C♯ G♯
Try it
Is the signature alone sufficient to choose between two candidate keys?
Answer
Look for a cadential phrase and bass motion. Distinguish local alterations from the signature.Related topics
Reading key signaturesReferences
Music Theory for the 21st-Century Classroom · Further reading
Subject-expert review pending.