Thanks for providing a test. Not able to run it right now, maybe tomorrow.
https://codereview.appspot.com/557380044/diff/563510046/input/regression/multi-measure-rest-reminder.ly File input/regression/multi-measure-rest-reminder.ly (right): https://codereview.appspot.com/557380044/diff/563510046/input/regression/multi-measure-rest-reminder.ly#newcode10 input/regression/multi-measure-rest-reminder.ly:10: \version "2.19.21" nit: probably 2.21.0 if it's using the newly added feature? https://codereview.appspot.com/557380044/
