changing-midi-output-to-one-channel-per-voice.ly creating-a-sequence-of-notes-on-various-pitches.ly creating-slurs-across-voices.ly cross-staff-tremolos.ly demo-midiinstruments.ly dotted-harmonics.ly heavily-customized-polymetric-time-signatures.ly indicating-cross-staff-chords-with-arpeggio-bracket.ly inserting-score-fragments-above-a-staff,-as-markups.ly jazz-combo-template.ly printing-music-with-different-time-signatures.ly score-for-diatonic-accordion.ly