Invalid accordion registrations. Moved out of 75a.. No accordion-(high|middle|low) given, empty middle, middle with invalid value, middle with 0 1 0 major 4 4 G 2 C4 1 1 quarter empty M test C4 1 1 quarter inval.M 0 C4 1 1 quarter M=0 5 C4 1 1 quarter M=5 light-heavy