Elliott grew up in
Wayland, Massachusetts, about 20 miles west of Boston. In 1969, he graduated from
Wayland High School, where he played clarinet in the school band. Encouraged by director George Doren, Elliott wrote his first orchestrations for the band to play at football game halftimes. Other than high school music instruction, Elliott is basically self-taught. He did not attend college. In an interview 40 years later, Compton said of Elliott, "Bill only needs to hear a song once and he already knows it perfectly. He's like a modern-day Mozart, and really looked the part back then." Soon, Elliott decided to move to Los Angeles. He had some significant early success performing in a country-rock band called
The Rowan Brothers, named for Elliott's hometown friends Lorin and Chris Rowan who had moved to California. He performed on their 1972 album
The Rowan Brothers, featuring
Jerry Garcia and produced by bluegrass mandolinist
David Grisman. The band was successful enough to perform as the opening act for
The Grateful Dead at San Francisco's
Fillmore West in 1971. He also played with other California bands, such as
Seatrain and Marblehead. Elliott moved back to Boston in the mid 1970s and toured with some popular acts of the day, including
Livingston Taylor (brother of
James Taylor), Jonathan Taylor and
Tom Rush. Elliott's first big band writing was for a show performed by actor/comedian
Martin Mull. Elliott said, "The show covered many musical styles, including swing, country, and r&b. It was a real education learning how to arrange for these distinct genres on the fly." In 1977, at age 26, he returned to L.A., which was his home base while touring as a member of Bonnie Raitt's band for about two years. Between tours he found work making demo recordings for music publishers; this work honed his skills—enough for Elliott to enter into a select group of elite recording keyboardists, that allowed him to focus on studio work and to stop touring. Elliott was booked on sessions to record with artists including
Stevie Nicks,
Donna Summer,
America,
Robbie Dupree, and
Smokey Robinson. == Finding a niche ==