Pianist and songwriter, played keyboards with Frank Zappa from May until August 1971. Not to be confused with Bob Harris, who worked for Frank Zappa from September to December 1980, providing keyboards, trumpet and vocals. He played also piano with The Turtles, worked as arranger for The Friends Of Distinction and Jack Jones and toured with Ray Charles.
On April 27, 1966, he got married to Judee Sill with whom he also played and wrote songs. They got divorced in January 1972.