\property Staff.instrument = "2 Clarinetti (B\\textflat)"
\property Staff.instr = "Cl. (B\\textflat)"
% urg: can't; only My_midi_lexer:<non-static> () parses pitch?
\property Staff.instrument = "2 Clarinetti (B\\textflat)"
\property Staff.instr = "Cl. (B\\textflat)"
% urg: can't; only My_midi_lexer:<non-static> () parses pitch?