This package adds the \keyboard[1][2]..[7] command to your
project. When used, it draws a small 2 octaves piano keyboard
on your document, with up to 7 keys highlighted. Keys go : Co,
Cso, Do, Dso, Eo, Fo, Fso, Go, Gso, Ao, Aso, Bo, Ct, Cst, Dt,
Dst, Et, Ft, Fst, Gt, Gst, At, Ast and Bt. (A working example
is included in the README file.)
