3) MusicFX

MusicFX is one of several “AI experiments” that Google has made available on the web, and all you need to make use of the tool is a Google account. This is more suited for chill-out or background music—vocals aren’t included, and your clips have a 70-second maximum length (though you can set them to loop around if you want to continue listening).
It’s the sort of app that’s good for playing around with AI and seeing what’s possible because you get a variety of suggestions about how you can edit and improve on your prompts, and you can rate the content that MusicFX produces. There’s also a handy DJ mode, which produces endless mixes of AI music based on the prompts you select.