Thanks to Mr. You(尤靜波)'s demonstration:
the SUNO is getting incredibly "talented" in music. I've longed for this technology, since I learn slow in music theory. This AI obviously makes full use of chord progressions in various styles and genres, by mere listening to a user's audio singing file. I've already invested in TurboScribe. Suno maybe a second one. I've used SUNO to produce music for fun before, i.e. Happy Birthday Gee by typing in a poem (also generated by AI) for SUNO to compose the song based on the genre I choose. But apparently, SUNO can now detect pitches and sort out accompanying chords from mere audio files.
I feel like I'm going to be learning music theory (music arrangement) by reverse engineering from AI products.
While some criticized AI music for being no emotion, Mr. You rightly discerned that AI is imitation. It does not really create/compose music (composition 創作音樂，作曲), it only helps to arrange music 編制音樂，編曲 orchestration:
I have so many ideas, i.e. singing hymns and see how SUNO turns it into rock & roll, etc.