Tilt your iPhone or iPad to roll a ball down the center of a path to correctly play a song. Go too far to the right or left and your notes will be sharp or flat. Lean even further and you’ll fall off the path and have to start over. Ten levels of play get progressively more difficult. Challenging for all ages. Optionally shares your accomplishments with Facebook, Twitter, email, or instant messaging. Universal App - supports iPhone, iPod Touch, and iPad, including standard, Retina, and iPhone X displays.