The Wizard Master Control Program lets you trigger external MIDI devices or your computer's awesomely simplex internal MIDI instruments with 128 separate beat configurations (8 loops of 16 beats each) each with its own controls for instrument, pitch, volume, stereo panning and duration. Try out the Randomize feature! This is possibly the oddest little drum machine and sequencer you will ever come across. Resizing the window changes the loop length, and the tempo can be set to beats per minute (anywhere from 0.001 bpm to 50,000 bpm and beyond!) or samples per measure (to sync with BackToBasics).