In this tutorial...
1. Creating interesting hi-hat rhythms with varying velocities, decays and reverse effects out of a single crash cymbal sample.
2. Clip envelopes and follow actions working together to create IDM beats with constant variation.
3. "Ghost snares" with Ableton's Velocity device.
4. Some quick tricks with white noise.
This video assumes you already know a bit about clips envelopes and follow actions, but do a search in Ableton's manual if you need to learn more: downloads.ableton.com/manuals/80/ableton_live_8_manual_en.pdf