It is a weird sentence though is not wrong grammatically.
A track in a musical compact disc?
It probably means 'a great guitar piece'. Piece' as in musical piece or composition.
not a teacher
A "guitar piece" would be a composition specifically written for the guitar. However, I think the OP was probably talking about one track on an album and it's quite likely pop/rock music (or something similar).
I would say "The guitar on that track is/sounds amazing!"