I use subsonic (now closed source), but there are several alternatives based on it that are open source (e.g. airsonic). On my phone I use the dsub app which i

I use subsonic (now closed source), but there are several alternatives based on it that are open source (e.g. airsonic). On my phone I use the dsub app which is just fantastic IMO. Should work with any server that supports the subsonic api. There's also ampache which I hear is good but I've never tried it.