I agree with what Josh said about transcribing in black and white notes, rather than numbers. *Slowing down to half speed is NOT CHEATING. *there's a program called CD Looper that can bring a CD down to half speed without changing the pitch - *very cool. *If you don't want to pay for a program, the Sonique mp3 player can slow down to true half speed (octave lower pitch).
***note about transcribing. *It's NOT easy at first, but it does get easier the more you do it...persevere and the rewards are great. *Start simple - do a Hendrix or Clapton solo.***
Another method I've found helpful for learning solos is listening to a certain passage over and over again and just sing along with it - use whatever syllables you hear in your head (dweeee doo ba doo be doo is fine). *Usually once you can sing it, it's fairly easy to play it.
To improve phrasing in improvisation, I suggest singing along with everything you play - much in the same style as
George Benson. *If you run out of breath in one phrase, it's too long.
Another reminder...speed isn't everything. *Outside of shred guitar circles people aren't impressed by speed - they're impressed by note-selection and phrasing. *I'm a Vai lover, for sure and most of his stuff is way above my playing ability (on guitar) - but I don't strive for that. *It's fun to listen to and drop my jaw, but it's not how i ever can envision myself playing. *
If I could hire any guitar player to put down a solo on one of my songs it'd be
David Gilmour (from Pink Floyd, but i hope you already knew that). *He doesn't play anything fast, but his guitar solos just SING to me.
Okay...just got inspired for a different thread.
Hope this helps. *Good luck!
~Kenny