Bobby Beausoleil's Lucifer's Rising soundtrack was made in prison. Jimmy Page was supposed to do the soundtrack but dropped out
"Beausoleil suggested that he should compose the soundtrack for Lucifer Rising, as the two had originally agreed a decade earlier. He told Anger that be believed he could obtain approval from the prison administration to record his compositions within the institution."
"Beausoleil formed the Freedom Orchestra with fellow inmates, and recorded the album in the prison using instruments built in the prison handicraft shop."
That’s f***ing wild lmfao.