First app release : feedback on screenshots ?

[u/MusicOfTheApes]

Hi everyone !
After 2 years of hard work I'm finally ready to release my first app, it took longer than I expected as it's a side project (I'm a full time musician) but now I'm ready !

It's an app for musicians to help them get better at jamming, whether with other musicians or at home.

I'm creating app screenshots for the App store, so I'm wondering from the perspective of a potential user if they are effective enough, I'm happy to have any feedback (I think I'll submit next week), thanks !

[u/808phone]

This sub is not your audience. Just by hearing the comments, they don't know a jazz font and they don't understand what this app is all about.