Your song selections are awesome. Your tabs are great for beginners and intermediate (no bends or over-blows). It is great that everything seems to be for a "C" harmonica. Your backing tracks are great and not overpowering. Now for some suggestions. It is critical to include lyrics under the tab to help keep the rhythm, especially for those who want to try it without the backing track. Your website needs a free option either for a week or for just a few songs. It also needs to show a listing of songs, so people know what to expect. You cannot expect much success for your great work if you just post a "$5 a week" sign on a closed door. Best wishes! You are on the brink of having a great setup.
This to retry was as a absolute Beginner to much for me but Made me much more complementing in what my Brother in law (Franz chmel) has achieved in His liftime and I realized how complicated this ist to play (chromatic harmonica), though this seems to be simple Blow in Blow Out. But needs really much coordination and so on.