Wow, I had a similar idea back in 2018 and I created a visual prototype for it with bunch of screens and did user interviews.
I didnt get chance to look into the app fully yet, but my idea covered musicians and people ( like restaurant owner/mgr or other ) to hire musician, I also handled a way to find other band members too. Would love to share my idea and details in case you are interested
In my spreadsheet of possible expansions, I do have "artist", "band" and "venue" specific profiles and some way to provide value to them, but I haven't really thought it through.
I didnt get chance to look into the app fully yet, but my idea covered musicians and people ( like restaurant owner/mgr or other ) to hire musician, I also handled a way to find other band members too. Would love to share my idea and details in case you are interested