season 2 and 6, season 2 had that greta slow mo run some great guest singers the song at the end of the seris full of grace, close your eyes so muhc good music, but then season 6 had a musical and michelle branch so thta was pretty darn good!

seasons 2, 6, and 7 were great! season 2 had the good slow mo music like mckena said, and i liked the music that was often played during bangel romance scenes (even though i don't like the scenes themselves). but season 6 had the musical, and michelle branch, and i liked the song they played at the end of grave. season 7 also had the great chosen music, and aimee mann!

I think season 5,6,7 had the best music. I chose season 6 because, obviously, of the musical episode OMWF and songs like Michelle Branch's "Goodbye to you" in Tabula Rasa. Season 5 had brilliant instrumentals, like the song right at the end of "The Gift". Season 7 had good guest singers too.