MusicianCV · TRThree-flat key pair
Open the interactive module
Tonal centres and signatures
Three-flat key pair · E♭ / Cm → B♭ E♭ A♭
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 · E♭ / Cm / B♭ E♭ A♭
Key or operation / checkE♭ / Cm B♭ E♭ A♭
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
Relative major and minorReferences
Music Theory for the 21st-Century Classroom · Further reading
Subject-expert review pending.