Recently, the playback on Musescore became distorted. It was sped up, the notes were dissonant (no that is not my writing!) and they seemed to crackle and pop.
When both systems I have exhibited the same problem, I knew it was an upgrade issue, and not my hardware.
This phenomenon seems to have occurred a few times over the years, and I tried many of the recommended fixes. What finally worked was changing the output from PulseAudio to Jack.
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