I've got no particular desire to play ten minute solos. Those were never valid anyway in my book — never. It was just a cheap way of building up a tension in the audience... A solo should do something; it shouldn't just be there as a cosmetic. It should have some aim, take the tune somewhere. I'm not saying I can do it, but I try and take the tune somewhere.
Denyer, Ralph (2002). The Guitar Handbook. p. 140. ISBN 0-679-74275-1.