Urs Heckman has started his own YouTube channel where he shows us the workings of Zebra. Zebra is a wireless modular synthesizer. It combines numerous synthesis techniques (subtractive, additive, fm, wavetable, etc.) with a powerful modulation engine that even smoothly integrates with the built-in effects section.
The video above is just part 1 of 6 video tutorials on how to use and work with Zebra. Check out the other videos at the Urs Heckmann channel.