MusicianCV · TRFour-flat key pair
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Tonal centres and signatures
Four-flat key pair · A♭ / Fm → B♭ E♭ A♭ D♭
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♭ / Fm / B♭ E♭ A♭ D♭
Key or operation / checkA♭ / Fm B♭ E♭ A♭ D♭
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
Parallel major and minorReferences
Music Theory for the 21st-Century Classroom · Further reading
Subject-expert review pending.