Being tone deaf doesn't affect your sense of rythm. Sense of rythm is like any other skill and can be honed with practice.

Being truly tone deaf means you can't hear the differences between notes. Most people aren't truly tone deaf, they just aren't trained to hear pitch differences. Even if someone is tone deaf they can still learn to play music, they'll be limited on instruments and they'll have to learn to sight read or memorize their pieces or they'll pick up percussion, but they can still play. I'm just saying if you have an interest in music don't let being bad at it keep you from enjoying it and don't think age will hold you back either. I know a few people who started in their 40's and 50's and got pretty competent at playing pretty quickly.

Anyways, I really didn't like how this game visualised when to start button prompts. I would've preferred linear ones like during the special moves rather than collapsing circles. I didn't like that in some sections they would just throw the button prompt wherever. I found the buttons would occasionally blend in with the environment since it's so colourful.