Blind Item #8 - Reader Blind

This late musician is still considered perhaps the greatest of all time on his specific instrument.  He was part of this A++++ band up until his death and also made solo albums.  One of the bands earliest singles features a solo by him which is not common for this instrument.  In keeping with his dark sense of humor, among his personal papers after his death was found a series of correspondence between himself and well known criminals (serial killers, bank robbers etc.).  In the early days, this musician was sometimes helped in the writing of these letters by this even more famous bandmate also deceased who was famous for his practical jokes and out of control behavior.