MusicianCV · TROne-sharp key pair
Open the interactive module
Tonal centres and signatures
One-sharp key pair · G / Em → F♯
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 · G / Em / F♯
Key or operation / checkG / Em F♯
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.