What's a duel?Edit
In a duel you play a song and record a score. The person you dueled then gets a chance to beat your score. They can play whenever they want or decline the duel.
Starting a DuelEdit
To start a duel, begin by playing any song. After you beat it a button labeled "Duel a Friend" will show up on your score page.
Click that, and then choose the person you want to duel. Your opponent will get an email letting him or her know that you have challenged them to a duel.
Duels vs. ShowdownsEdit
Duels are one-on-one challenges, where both players can play whenever they have time. Showdowns let many people play the same song at the same time and compete in real-time.