You can often tell a lot about what a guitarist is about to do just by looking at the axe he's chosen for the gig. If it's a Flying V, he's here to rock, and he doesn't care who knows it. If it's got a big round wooden face with f-holes and a scratch plate, he's here to jazz out with some fruity 13-chords. If it's a seven-string Ibanez with a whammy bar and it looks like it's been dragged backwards through a paint shop, he's gonna shred and finger-tap until somebody's face falls off. But what can you say about a guy who turns up with a Gibson Holy Explorer?