Philip Chapman Lesh (born March 15, 1940) is a musician and a founding member of the Grateful Dead, with whom he played bass guitar throughout their 30-year career.Read about Phil Lesh in Wikipedia
The decision to change the name meant we were getting serious, because we couldn't make a record if some other band had the same name as us. I told the boys I was in a record store, thumbing though 45s, and I'd seen a record with the name the Warlocks on it. I've often wondered whether I hallucinated it, because I never saw the record again and I never heard a word about any band called the Warlocks.
. . . We borrowed it all from Coltrane. I started encouraging everybody in the band to listen to John Coltrane - 'Check it out, see what these guys do. ' They take one chord, the tonic chord, and just play all over it. 'We can do that too!' I wanted to make our music something really amazing - I wanted it to be jaw-dropping and turn on a dime and do all of those things that I knew music could do, and nobody told us we couldn't do it. I shouldn't say 'I,' though - Jerry Garcia was behind it the whole way.