Automatic control of JACK/ALSA MIDI Out ports
fix warning reg. no return statement in function returning non-void
Merge pull request #1482 from Jojo-Schmitz/warnings

fix warning reg. no return statement in function returning non-void
Merge pull request #1171 from Igevorse/instrument-change

Automatic control of JACK/ALSA MIDI Out ports
fix #30976: No zoom with Ctrl+mouse
fix #40036: Tremolo through stem on grace note all eighths in 1.3 score
fix mtest
fix #40066: accidentals in chord symbols
Merge pull request #1483 from MarcSabatella/40066-german-chords

fix #40066: accidentals in chord symbols