Well I used to hear them too on my MacBook air running Linux.  
  
Now Linux Mini is 20.1, Pulse Audio is 1:13.99.1, and Squeak is 6.0alpha with update 20211, and the VM is from sources of 202101092147.  
  
And the Bach fugue sound perfect.  
  
So something changed to make it work well.  
  
Does a recent VM plus a recent Squeak 6.0 Alpha make the PI sound good?  
  
Thanks.  
  
bruce  

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