MusicianCV · TRTwo-sharp key pair
Open the interactive module
Tonal centres and signatures
Two-sharp key pair · D / Bm → F♯ C♯
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 · D / Bm / F♯ C♯
Key or operation / checkD / Bm F♯ C♯
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
Scale degrees and tonal centreReferences
Music Theory for the 21st-Century Classroom · Further reading
Subject-expert review pending.