grist for the mill
https://audiokarma.org/forums/index.php?threads/famous-musicians-and-their-audio-gear.347616/
https://insheepsclothinghifi.com/celebrity-hi-fi-systems/
https://downhomedigital.net/blog/how-stars-listen-to-music/
https://hifihaven.org/index.php?threads/musicians-who-are-audiophiles.6003/