Hi!
I have ported a game from Windows Phone, where it has 400.000+ downloads and 4.6 average rating. 230 piano songs are included, and they are mostly user requsted:
https://play.google.com/store/apps/details?id=com.rgolf.mindyourstep
I would love some downloads and reviews, and if you have an app you want me to take a look at, please let me know 
Thank you all!
Rune