Livebook is a digital music stand for bands. The leader switches songs, and every screen in the band follows instantly — tablets, phones, TVs. What makes it different: real-time sync across unlimited devices, no app to install (runs in any browser), MIDI control from your keyboard or foot pedal, and smart auto-layout that keeps charts readable on stage. Chord charts, lyrics, chord diagrams (guitar, piano, ukulele) and PDF sheet music — your whole repertoire, one tap away.