Key Signature Cancellation Tests of key signature cancelation, at default location, at right, and before-barline, then cancelling a key signature that does not exist... MusicXML Part 1 3 major 2 4 G 2 C 4 2 1 half 3 -2 major C 4 2 1 half -2 7 major C 4 2 1 half 7 -3 major C 4 2 1 half 3 2 major C 4 2 1 half light-heavy