Jon Lord, the respected founding keyboardist for Deep Purple, died yesterday aged 71.
He had been receiving treatment for pancreatic cancer since last August, but died after suffering a "pulmonary embolism" a common side effect of the cancer he suffered.
Jon co-founded Deep Purple in 1968, but his career started in the early 1960s where his band The Artwoods found success with the single "I Take What I Want". In 1967 he formed a group with Ronnie Wood who later joined the Rolling Stones, but soon went on to form the band that truly made his name.
Deep Purple regularly switched members, but Jon remained a consistent member alongside drummer Ian Paice. One of their biggest hits, "Smoke On The Water", remains something of a rite of passage for new guitarists.
The band split after eight years, but reformed in their classic lineup in 1984. Their tours were a huge success, and he continued with the band until 2002 when his request to have a year break from touring was apparently declined.
Throughout his career, Jon worked on several solo albums. Many were orchestral, and worked alongside the likes of Tony Iommi, Jason Newstead and Iron Maiden drummer Nicko McBrain.
Tributes from rock stars have been pouring in since his death yesterday. Here's a selection to highlight how influential Jon really was:
Slash: "[It's a] sad day in rock and roll; Jon Lord has passed on. One of the biggest, baddest, heaviest sounds in heavy metal. One of a kind."
Geezer Butler, Black Sabbath: "[I was] very sad to hear of Jon's death, following his battle with the demon cancer. [He was] one of the great musicians of my generation."
Tom Morello, Rage Against The Machine: "RIP the great Jon Lord, Deep Purple's cornerstone/keyboardist. So many great great songs and that incredible SOUND of his! Thankyou."
Jordan Rudess, Dream Theater: "I'm very sad to hear about the passing of Jon Lord. He was an inspiration to me!"
Dee Snider, Twisted Sister: "I just found out that Jon Lord from Deep Purple passed away. What an amazing musician and a true gentleman. We lost a great one RIP."
Pay your tributes to Jon Lord in the comments. Meanwhile, enjoy this clip of him on stage: