Folktek - Matter (Copper)
"Matter" is drum wave synthesis. While it could simply be called a drum synthesizer, the method of play is designed equally as much to make the all-analog drum-based synthesis playable as waves as it is to make triggerable drum sounds. This means Matter can take a "kick" oscillator, for example, and use it to generate a bassline, a "snare" can create washes of noise with peaking resonance, and so on. This allows for a very broad complexity of rhythm and tonality because triggering is not confined to a single point. That said, this module specializes in clicks and cuts style beats - little clicky sounds.
Matter is also very capable of generating complex drone and rich synthesis and does not need to be used as a drum synth at all. It utilizes the same analog synthesis as Materia which means it also works with aspects of deductive synthesis where noise and sound is "patched out".