This is one of the best electric guitar instrumentals I’ve heard
It’s originally composed for anime series “Saikano”
There’s video with original album instrumental
with scenes from anime here: http://www.youtube.com/watch?v=ORCq9CURdGc&NR=1
And also here’s version with vocals by Fumiko Orikasa:
http://www.youtube.com/watch?v=yQ1h0J7yGCA