Rejoice! SNDH, the biggest collection of Atari ST chiptunes, has just seen a massive update. A total of 303 tunes have been added or fixed. The archieve now includes all the YM2149 releases from SillyVenture 2013 as well as some other, ummm, great stuff that wasn't in there before.
For details, check Grazey's SNDH blog. Or simply head over to sndh.atari.org and download the beast already.