I once built myself a parametric real-time rhythm sequencer - a little black box with knobs and buttons and lights and an LCD screen, which spat out MIDI notes

I once built myself a parametric real-time rhythm sequencer - a little black box with knobs and buttons and lights and an LCD screen, which spat out MIDI notes to drive a drum machine - because that seemed easier than either learning to play the drums or learning to program drum patterns.