K-ON! Movie Original Soundtrack (映画けいおん! の サウンドトラック サウンドトラック,K-ON! Movie Original Soundtrack) is the "Original Soundtrack" (OST) of the K-ON! Movie. The album contains 39 instrumental songs and one (Train-D) with vocals, sung by Andrew Mackinlay. The songs are used as background music during the movie. The album was released on 21 December 2011 in Japan by Pony Canyon.
Due to the soundtrack being for one single movie as opposed to covering an entire season of episodes, the tracks on the Movie OST play in the order they appear in the movie, with a few small differences, noted below.
Track 17, "Spilled tea", does not play at all in the movie, but given it's location in the tracklist it was intended to play in one of the two scenes Azusa imagines while on their flight. This makes it the only track on any of the soundtrack albums to not appear in the show.
Tracks 28, 29, and 30, "Kekkyoku Kyou mo Chikoku Ja Nai Desu ka!", "Sonna Wake de Taxi de...,", and "Ge Ge! Daijuutai!!" all play effectively at once as one long track in the scene where Yui and Azusa follow each other though their two rooms in the hotel. Track 28 is cut into three parts and plays when Azusa is on screen, Track 29 is in two parts and plays when Yui is on screen, and Track 30 plays when they end up in the same room together, going 28, 29, 28, 29, 28, 30.
Track 2, "Hakugin no Asa", plays again as the last track in the movie, effectively book-ending the movie and making it the only track to appear twice.