On "Every Silver Lining Has a Cloud", the 1995 album by Julian Schnabel, he contributes to two songs -- "Carey Come Back" (harmonica) and "Apartment #9" (guitar).
[about his working relationship with Anthony Hopkins on Hitchcock (2012) ] He's been just a remarkable human being and I think, once again in my experience, that the remarkably talented are also... it's because they are remarkable people.