For my DAW project I need to be able to rewind the score, pause and 
start again. I use ctcsound and PySimpleGUI.

I have  metronome sound running and can play a loaded instrument via 
midi. Also, via scoreTime() I see the time advancing.
But when I press a button that triggers rewindScore, the following 
happens: The time display is reset to 0 as expected, but all instruments 
are silenced. The metronome and midi input do not produce sound anymore. 
I do see events coming in, but the levels are all 0!

The same occurs when I use pt.pause() and then pt.play() again. I know 
this is about the performance thread, but why is the sound silenced?

Richard

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