"To buy the soundtrack" means to purchase the collection of music which is featured in a movie, TV show, video game, or any other form of entertainment.
Sentences with «to buy the soundtrack»
I already bought their album and will probably buy the soundtrack. (thescorecardreview.com)
Only fans of auto - runners need apply - for everyone else, just go and buy the soundtrack instead. (metacritic.com)
On top of all that, the music is quite good, although perhaps not the sort of thing you'd rush out and buy a soundtrack for. (hardcoregaming101.net)