If you own a copy of (now Sonar) or certain older editions of Computer Music magazine, you already own a piece of legendary synthesizer history: u-he ZebraCM .

Zebra CM is ancient by tech standards (based on the Zebra 2 engine), but that is a good thing. It runs on a potato. You can load 20 instances of Zebra CM in a massive film score project, and your laptop fan won't even spin up. Compare this to the CPU-hungry spectrograms of Vital or Pigments, and the utility becomes clear.

A synthesizer is defined by its filters, and u-he is the master of filter design. Zebra CM includes a selection of the legendary filters found in the full version.