Feldspar is the featured synth in the 53rd One Synth Challenge – a monthly contest which runs on the KVR Audio forums where participants are required to produce a piece of music using only one syntheiszer for all the sounds.
As it turns out, quite a few people were having problems with Feldspar crashing when running more than one instance in a VST host – updated versions of Feldspar and FeldparFX with the bug fixed are uploaded here.