One of my favorite tunes. Steve Howe plays some beautiful guitar solos starting at the 4:15 mark.
I like the live version even better. Again, listen to guitar at the 4:08 mark and the extended solo starting at 9:25.
The live Yessongs album is probably my most played record. I went through two copies on vinyl(three albums!) and now have the 2 disc set on CD. I probably listen to parts of the album at least three times a week.