Graphic VCO firmware update 1. 1 adds drum synthesis mode. Here is few patches and a jam Patches: 02:05 SPEEDCORE DANDY 02:58 ARCADE BASS 03:21 GROWLOER KICK 04:49 HIHATTER 05:38 ACID DRUM 06:59 RANDOM EVERYTHING 07:46 FM DRUMMER 08:43 PHASED DRUM 09:44 JAM with 3x GVCO s Find out more here: