Here you can download for free royalty free music that can be used in your mobile or computer games for free.
Licensed under creative commons license 3.0 It does require that you credit this music in your game.
Preview of available music to select here
you can download those tracks in mp3 format in one archive at
copy paste this text in info about author of music in your game
Music by Dmitry Tikov (tikov.com/music)
Licensed under Creative Commons: By Attribution 3.0