The commentary about Tull/Anderson in the COVID thread prompted me to write this - but then I figured I'd post it here rather than derail the COVID thread with off-topic content.
I'm a pretty big fan of Anderson, though I prefer his work with Jethro Tull more than I prefer his independent work. According to him, he doesn't do any drugs or even drink. I've seen him in concert and I'm skeptical but he may well be telling the truth.
It's also amazing how quickly he learned to play - anything. It was something like a few months to learn to play the flute.