John Douglas Jon Lord,
Deep Purple's co-founder and keyboardist, (1941 - 2012).
Deep Purple: Child In Time - 1970
Deep Purple are an English rock band formed in Hertford in 1968. They are considered to be among the pioneers of heavy metal and modern hard rock.
http://en.wikipedia.org/wiki/Deep_Purple
Deep Purple - Jon Lord: Keybord Solo
John Douglas "Jon" Lord (9 June 1941 – 16 July 2012) was an English composer, pianist, and Hammond organ player known for his pioneering work in fusing rock with classical or baroque forms, especially with Deep Purple, as well as Whitesnake.
Deep Purple - Jon Lord: Lazy, Keybord Solo, Live in Melbourne 1999