How does a rap producer play a live show? More specifically, how does a rap producer play a Tiny Desk Concert? You can’t just sit there on your laptop and play beats for people in the NPR office. That won’t work. On his great YouTube series The Cave, the LA-based producer Kenny Beats puts together made-to-order tracks for collaborators in a short time, and that can be compelling viewing, but it won’t work in a Tiny Desk Concert setting. So when Kenny appeared on the NPR series today, he went a very different direction.