Symphony is a game that is powered by yuor music, much like AudioSruf and Beathazard. There are some things that make Symphony stand out.
At first launch of the game, an "unknown entity" has seized control of your music, and you must liberate your library by defeating 5 bosses. Not only does this game have an arcadey feel like AudioSruf and Beathazard do, but it also incorperates a story, which I think is really cool.
When you play a round of one of your songs, you will die, however the song won't end and you'll be able to continue to the end of it (but your score will take a hit). After completing a new song you'll unlock a new weapon, and if you have enough Kudos and Insperation (earned by completing more songs), you can buy it and be able to equip it on your ship. So having a large music library is an advantage. Your ship can hold 4 weapons in any configuration you desire. You can even change the angle these weapons can fire, and the firing mode (fully automatic, semi-automatic, manually etc.), so there is a TON of varation to be experimented with.
This game supports all the formats you need (.MP3, OGG, FLAC, .WAV, and .AIFF are officially supported). Symphony will not play any song that is less than 1:30 minutes long, but there is no maximum cap.
I love AudioSruf and Beathazard, but IMO this game has a lot more going for it, and I highly recommened it.
For Linux players, this is a good working port. I play on Ubuntu 14.04 LTS and it plays flawlessly. Thank you Empty Clip Studios for deciding to support Linux :D.