The Gamebase ST team have been given permission by the authors to distrubute JAM along with GBST, many thanks go to them! JAM is, for those who don't know, a SNDH music player. The SNDH file format is probably the best around for sound quality being almost identical to the original sound of the Atari ST. It also allows all sub-songs from a game to be included in one file making it perfect for Gamebase ST usage.
Jam has already been incorparated into Gamebase ST and works perfectly. We are busy at the moment adding SNDH music files for the coming v0.2 release (VERY VERY SOON). We also have permission to include SNDH files that Grazey Zak has converted, and there are thousands in his Zak Hack's archive, many thanks to him also!