ABC X C1:Code 1 C2:Code 2 M:Meter K:Key H:Headers T:Title --- - C1:------ C2:------ M:----- K:--- H:------- T:----- ABC 9 C1:000500047001230 C2:ddudduuuuuddddu M:C K:Eb H:LQVw T:9 Sancta mater, istud agas