Don't have to have perfect pitch to do that....Idetic memory of ones' instrument...you play so much you remember what its going to sound like beforehand. Lots of performers do this.... one was Slam Stewart, bassist who hummed the notes as he bowed.
Mose Allison, Charles Mingus,Rashaan Roland Kirk, Keith Jarrett, how bout' Joe Walsh and Peter Frampton, with their talky-thingy-dealies.....

Charlie Parker, it has been said, the way he hit the woodshed, was by learning "I Got Ryhthm" in every key, and becomming proficient in them, using that song.....once he got that down, well....he also used a Rico #5 reed, which if anyone has ever blown woodwinds, is next to impossible to get a squeak out of, unless yer embrochures' like a foundry press.

Pizzarelli has such a great voice, reminds of Chet Baker....

It's a hard leap to make, especially for guitar. Guitarists tend to learn patterns and when they take solos, they tend to let their fingers do the walking. A good soloist thinks about what he wants to play and then forces his instrument to play that. When I took lessons they made me do stuff like this: sing what you want, ok now, try to play that, etc. It's not easy but I bet most great jazz players can do it.

Bravo....that was niiiiiice