Hello there,
I must say, that your project attracted me. As I am musician myself, I also perfectly understand your needs. Should you award me the project, we will have to discuss details about your demands (design, functionalities...).
I am proficient in front-and and back-end development. I can also arrange online hosting of your web app, if so you require, but this is the matter of further discussion.
Please, feel free to contact me anytime you wish so we can discuss details about your project.
Best regards.