Mubert, the world’s first generative streaming service, invites listeners to choose an intention like Study, Relax, or Dream to produce a one-time-only sequence of electronic sounds. (It’s free, though “premium” channels like Meditate cost $0.99 per month; an updated app is slated to land on June 6.) The result is something like listening to a DJ you’re quite sure you’ve heard before.

Of course, these machine-generated compositions have their artistic limits. The sounds are strictly electronic—Céline Dion this is not. At their bleakest, the compositions can resemble goosed-up elevator music. Some of the apps produce a relentless stream of dub–techno or rigid house music, likely aimed at the college stoner crowd (Mubert includes High as one of its six activities).