Voice covers music

Worst sing app ever! Lousy limited selection and your voice covers the music thus you cant hear anything but yourself and theres a half second delay on your voice and you end up behind the music.
All any singer needs is the music, I can hear my own voice without wurrly putting it in my ears so loud I cant hear music.
Simple controls would be nice

captandy about Wurrly: The Ultimate Singing App, v3.1.4