No, he's still just experimenting with the audio representation. However, you certainly can generate halfway intelligible rap, and much more, if you check out h

No, he's still just experimenting with the audio representation. However, you certainly can generate halfway intelligible rap, and much more, if you check out https://openai.com/blog/jukebox/ https://openai.com/blog/jukebox/ (with GPT-3 lyrics) or consider other kinds of audio synthesis like https://speechbot.github.io/dgslm/ https://speechbot.github.io/dgslm/ (fully end to end).