The Soldering Synthesizer has a 16-step sequencer and 4 tracks of sound generator. The sequencer can set a rhythm pattern with short circuit by the solder. The sound generator part consists of a T-Bridge analog circuit, which can reproduce various percussion sounds by the combination of capacitor and resistance. Also, you can change the EQ and BPM freely by changing the corresponding components. All components can be replaced, so you can enjoy an infinite sound making.