The most heartbreaking guitar solos into prog / rock?
Two wonderful prog songs come immediately to mind at the moment:
=> Death of Ra, by JADE WARRIOR (from the album "Way of the Sun")
=> Ice, by CAMEL (from the album "I Can See Your House from Here")
Which others would you also mention here?
Demetrio.
Call me a traditionalist...
(aka: old) but one of the most evocative solos in rock was Eric Clapton's in "While My Guitar Gently Weeps". If that doesn't sound like instrumental crying, I don't know what does.
I know that this is not "prog rock" by today's yardstick, but it was for the time