well you’re right i should have given more details about my configuration. I test on Ubuntu 18.04.03. with spi 3.2dev. Your solution is not working for me but maybe i have to test more sleep values to discover the good one ???
i feel the changing program is taking too much time to be set and then the midi note is played before. So it’s a really mess…
For windows you can install a more recent version https://github.com/JoshuaPrzyborowski/Qsynth-Windows-Builds the exe are provided 0.5.5.
This morning, i did some tests with loopMidi, qsynth 0.5.5 and spi 3.1 under w10 and meet some problems… the mma mode seems not to work. i keep learning and trying to find solutions and give you some feedbacks. It’s time for garden right now 