Show HN: APR app for music creators(MVP)

Greetings everyone, This is something i'm working on for independent artist. I Recently applied to Ycombinator with it and got my First rejection haha. Its very limited right now and only on android right now, but i would like to hear some feedback if i should continue to develop it as a business? the artist i interviewed seem to like and would want me to expand it more. What do everyone thinks?

Webapp URL: www.delistening.com

https://www.crowds.io/project/evaluation/54621b9b07b72c020018cbf3