This combines many of my deepest passions – prog rock, the Beatles, and 20th century Magic(k). Hearing Les Claypool sing “Do What Thy Will” in 5/4 rings a lot of bells for me.
Sean Lennon is obviously interested in Magick – he talked about it in an interview with Billboard recently – but it sounds like a passing interest rather than something he is actively engaged with. I also would quibble with “he belonged to a magical cult”. The interview is pretty light but I enjoyed the brief description of how he and Les Claypool work together. The album’s up on Spotify now and I like it. I’ll buy it if I see it on vinyl.