Lineup is a music app built around a simple weekly ritual: pick four songs, post your lineup, and see what your friends are listening to. Every week you put together a lineup of four tracks. Once you post yours, your friends' lineups open up in your feed, so everyone shares before anyone scrolls. No lurking, no endless algorithmic feed, just the people you know and the music they're into that week. What you can do: - Post a new four-song lineup every week - See your friends' weekly lineups in a shared feed - Build a profile with a timeline of your past lineups and your all-time favorites - Like and comment on lineups through the week - Find and add friends - Connect Spotify or Apple Music to pull in song suggestions while you build - Get notified when friends like or comment Music taste is personal, and it's better shared with a few people than broadcast to everyone. Lineup keeps it small and weekly.