Music v 1.2.4.3 playback is warbled garbled flanged sounding
I am having a very strange problem. I have 2 old Macs with iTunes. My track plays fine.
When I play it on my newer Macbook with Music, parts of the song with a synth sound warbly and garbled, like it is being run through a flanger. Most of the rest of the track plays normally. Weirdly, it transfers this sound to my iPhone when I sync it. If I send the track from the old Mac as an MP3 in a text message, it has the same warbly garbly issue.
I have tried the AIFF, MP3 and AAC versions of the track and they all do the same thing. Has this happened to anyone else? I tried searching for solutions but didn't find one.
MacBook Pro (2017 – 2020)