Seriously, WTF! I repeat, WTF! Your 'app' only has one feature, which is music recommendation, right? So it has no other features to make up for it.

I go there and type 'Billie Holiday' and the first result that comes back is 'Iron Maiden'. Then comes a bunch of other seemingly random artists like Michael Jackson, Taj Mahal and so on. I don't see Ella, Louis, Anita or any of the people who usually belong to the Billie group.

You can't release an application with one feature, and that one feature does not work. This is not reverso world where the opposite of working actually works.

This is like a car being released that does not have a roof, and engine or tires. Fix your 'startup' and try again.