"Having been a founding member of Yes in 1968, Chris Squire, who has died aged 67 from leukaemia, remained committed to the group for the next 47 years. Squire, the band’s bass player, retained ownership of the Yes name even during a period of instability in the late 1980s, when other members split away to form Anderson Bruford Wakeman Howe. He was the only member to play on every one of Yes’s 21 studio albums, from their debut, Yes (1969), to Heaven & Earth (2014); and helped to write much of the band’s material.
"Squire’s favourite instrument was a 1964 Rickenbacker bass guitar, which he played throughout his career. It helped to mould his agile, melodic sound and gave it a cutting tone that ensured that it was prominent in the group’s sound, particularly so since Squire often played in a higher register than many rock bassists."
http://www.theguardian.com/music/2015/jun/29/chris-squire#RIP#ChrisSquire#Yes