Paul Kantner Jefferson Airplane/Starship RIP.

The music of Jefferson Airplane was a key ingredient of the psychedelic aura shrouding San Francisco in the late 1960s, and the guitarist, songwriter and vocalist Paul Kantner, who has died aged 74, was one of the group’s chief architects. “Paul was the catalyst that brought the whole thing together,” said the Airplane’s guitarist Jorma Kaukonen. “The band would not have been what it was without him.”