There are a lot of things to consider with this issue: first, when you’re in 
QWS, did you make sure the sink start function is not enabled? If it is, you 
have to hit a key or move a controller after hitting the space bar in order to 
hear midi playback. Press control wide to turn it on and off.
Second, what software or hardware synthesizer are you using? For example, 
Microsoft GS wave table,coolsoft, bassmidi, Yamaha motif, etc. If you suspect 
there might be an issue with your synthesizer, try setting one of the tracks to 
a different port and see if it plays back.  
As for system midi volume in Windows, I have no idea where you would find that. 
   

God bless!
Seth

On May 7, 2021, at 6:56 AM, Brian Williams <[email protected]> wrote:

Hi all, Using windows 10,  When using the note editor in QWS the notes will 
play when I confirm each note or play each note when using tab right arrow. 
However following a recent windows   update QWS won’t play any midi files when 
I press spacebar. I have
Uninstalled the program and reinstalled, no change. In the past I had a problem 
on previous laptops where midi volume would curiously reset itself to 0. 
However I can no longer seem to find a setting in sound controls to change midi 
volume separately. Is it hidden in some obscure corner of system settings? 
Please Can anyone advise?
Brian

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