FX-LBPHONE-MUSIC is a music streaming app integrated with LB Phone where the phone functions as a positioned speaker in the world that all nearby players can hear. Players search for songs by name and the app plays them directly—no source selection required. The app supports YouTube search, direct link pasting, direct audio URLs, and full Spotify and YouTube playlist importing.

Audio falls off with distance and is muffled through closed car doors and building walls. Walking into a vehicle mid-song places you at the correct point in the track. CarPlay connects the phone to your vehicle, moving music to the car with sound carrying further when windows are down and fading as you move away. Playback continues with the phone closed, in inventory, or while driving, with controls accessible from the lock-screen Music Tray.

All playlists, favourites, volume, theme, language, and crossfade settings are saved per player and persist across restarts. The app includes playlist sharing with nearby players, personal library management, history tracking, and queue control.