defMon Sync Adapter is an adapter for the Commodore 64 computer. It is used to synchronize a tracker called defMon with other music equipment. It connects to the user port and outputs the following signals: -LSDJ sync signal. -nanoloop sync signal. -midi clock. -din sync. -clock signal with adjustable resolution from 24ppqn to 2ppqn for Korg Volcas, TE Pocket Operators, Arturia Microbrute, MI Anushri etc. It can only work as master. It should also work with Prophet64. Original developer: Krzysztof Iwanowski The firmware, PCB layouts and schematics are released under a Creative Commons cc-by-sa 3.0 license.