TRIVIA QUESTION #3

Trivia questionof 5
Remember do not respond till the last question is given on Tuesday 11/29/2011.

Who am I?
*I was involved in the late 60’s British music scene as a musician.
*I am a multi instrumentalist with my prominent instrument being key related.
*I released 10 singles with my band between 1967-1971, but went on to record one off singles and LP’s with various studio projects.
*I released my solo debut LP in 1970 and it sold around 300 copies before being shelved.
*I went on to produce records throughout the 70’s, 80’s, and 90’s.
*My biggest single I produced in the 90’s ended up getting me sued.
Who am I?