Beck is nothing if not a bit pretentious. The guy released a Yanni cover album done from memory (among others in the same style).
But with his productivity, if he chooses to release some tossed-off nonsense here and there, you can still be sure he has something "normal" in the pipeline. AFAIK, he still has an(other) album in the works, he just put out a bunch of songs for some Vita game, and he did a bit of rapping and production on the recent Childish Gambino mixtape.