I think advertising it as a DJ is a stretch, last time I tried it, it was basically just Siri for music. DJing is much more than just playing random tracks.

I’ve been wondering if AI could be used to compose a set that rivals real DJs, but it seems like a difficult problem. First it needs to select tracks that fit well together, and stitch them together to ramp up and ramp down energy over time. Then it needs to layer the tracks, which requires an intuition for what sounds good and I’m not sure can be done algorithmically. It also needs to do engaging transitions which are appropriate for the moment - also difficult.