See the instructions[0]. You can use the WebUpd8 PPA for 64-bit[1][2].
[0] http://flavio.tordini.org/musique/linux-setup [1] https://launchpad.net/~nilarimogard/+archive/webupd8 [2] http://www.webupd8.org/2013/02/minitube-20-and-musique-121-released.html
