so can anyone tell me some of the scales that David Glimour and Jerry Garcia use?

also, if you happen to know much about Frank Zappas work, id be interested in that, too
Sorry but its impossible to say what Zappa used as he went through everything during his career!
Frank Zappa had alot more going on in his music than guitar. It's not the guitar alone that contributes to the psychedelic sound. It's more of what's going on in the background behind the guitar that makes it sound a certain way.
David Gilmour didn't use much other than the pentatonic scale, Garcia... hell probably the same
RIP SYD BARRETT (1946-2006) Shine on...

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