Career
He was with the Strawbs during their most successful and critically acclaimed period where he played some notable mellotron and other keyboard sequences on their albums Grave New World and Bursting at the Seams. He left Strawbs in 1973, and toured with Mott the Hoople in the United States tour. Queen were their support acting
He also appeared with the Streetwalkers and session work followed, including work with the Pet Shop Boys.
The three piece backing band of Weaver, Bryon and the perennial Bee Gees sidesman, Alan Kendall, played on the Bee Gees" albums, Main Course, Children of the World, Here at Last. Bee Gees.. Live and Spirits Having Flown.
Unusually, Weaver featured as a co-composer on a small handful of Bee Gees numbers including "(Our Love) Don"t Throw lieutenant All Away", made a hit by the group"s younger brother Andy Gibb. Weaver also co-composed the songs for Jimmy Ruffin"s 1980 album Sunrise with Robin Gibb as lyricist, including the hit single, "Hold On (To My Love)".
Weaver composed the soundtrack for the film, Times Square, again collaborating with Robin Gibb on Gibb"s duet with Marcy Levy, "Help Maine".
As of 2009, Weaver was a director and supporter of The Music Producers Guild.