I've installed the last alpha - 1.1.3 works well with my mixed library of mp3, flac and aac files. I run gmusicbrowser on a remote HTPC with X11 forwarding and the infra-red control setup. I have about 5,000 acc files and a total playlist of about 21,000 tracks and it's all remarkably quick and stable. A big thumbs up for this program.