#"x;x;o;1-1;o;1-2;"
\storePredefinedDiagram #default-fret-table \chordmode {b:7}
#guitar-tuning
- #(offset-fret 1 (chord-shape 'bes:7 guitar-tuning))
+ #"x;2-2;1-1;2-3;o;2-4;"
\storePredefinedDiagram #default-fret-table \chordmode {b:maj7}
#guitar-tuning
#"x;2-1;4-3;3-2;4-4;x;"