⌂ Multiple simultaneous RehearsalMarks, tunable output per score, grace synchronized
An alternate engaver for RehearsalMarks with many features, e.g.
- print multiple RehearsalMarks at the same time step, but still support purging of duplicates
- different formatting in different scores resp. instrument parts
- grace note synchronisation for the RehearsalMarks by printing them left of the grace notes