TOPOGRAF is a drum sequencer with three tracks, that works with a "topographic" principle; it contains a number of drum patterns arranged in a "virtual map"; and with two knobs MAP X and MAP Y you can set a position in this map. With one knob per channel the density is defined; and a CHAOS knob brings some randomness into the whole process. All in all, a few knobs for a lot of drum patterns you probably wouldn't make this way by yourself - a nice source of inspiration and also great for playing live.

TOPOGRAF is the AE modular version of the Grids module by Mutable Instruments. It is 100% identical to Grids.