This generative, aleatoric sketch has four voices, each controlled by macro envelopes. The voices come and go at random intervals and last for random amounts of time. If you let the patch run, the voices interact in an endless variety of ways, while the pace of events provides room for the voices to breathe.
The two primary voices are collections of related sounds, one plucked and the other chirped. Both are really the same instrument but with different micro-event envelopes. The drones provide a point of reference. The claves-like strike adds focus at random points.