Upload a .mid file. It extracts the melody line and emits a beep sequence for a Pybricks hub speaker.
Melody
Playback
Hub
Multiple hubs stay in sync over Bluetooth — each plays one track. Available on Prime / Inventor hubs. The leader is the master clock and followers re-align to it continuously, so they won't drift over a long song. Each hub shows its track number on its screen. Sync trim (default −200) pulls followers forward to cancel BLE broadcast latency — make it more negative if followers lag, less if they run ahead.
Track for each hub
Hub 1 is the leader: run the follower hubs first, then press the leader hub's center button to start them all together. Press it again to stop every hub.
Preview plays the selected track(s) together, like the hubs.