Hi, Thanks for reporting this bug and adding more info. It seems this was reproduced in bug #997482 and I can reproduce it locally when running the testsuite.
I still have to upload the latest upstream version of sublime-music. I'm hoping it will fix the problem? Otherwise, I'll try to debug this further. No promises on an ETA though, I'm quite busy :( -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ Louis-Philippe Véronneau ⢿⡄⠘⠷⠚⠋ po...@debian.org / veronneau.org ⠈⠳⣄
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