I used to create AI music with Riffusion, then they became Producer.ai and got acquired by Google.
It now uses Gemini, Lyria 3, Veo and Nano Banana models.
This video was created with all of them from prompts I created with the help of Anthropic Claude.
There is a fledgling music-tech ecosystem now, with Suno, Stability AI, Splice and several music producer tools about to be released.