justify top left
key G

printkey G treble  "\37\" "\40\"
printkey E$ treble "x~\39\x~\191\ww\191\"
printkey E$ bass   "~\39\x~\191\ww\191\"

[stave 1 treble 1] 
GG | [key C] GG | [key E$] GG [bass 0] | [key E$] GG || 
[endstave]
