Built-in demo plays a simple melody with a guide tone so you can test scoring with zero files. Pick a song below, or load an UltraStar .txt + its audio for your own.

Songs

Files come from the songs/ folder. "Sync" shifts the notes to line up with your singing — raise it if your green hits feel late.

Players join from their phones. If nobody's connected yet, open the mic page on a phone on this Wi-Fi.