Radio That Never Repeats

The queue ends — and the music keeps going. That's autoplay: when the queue runs dry, SYN MUSIC spins up YouTube radio mixes of similar tracks, with no repeats within a session.

Artist radio plays a shuffled rotation of one artist's catalog, deduped and ready to go. Favorites radio turns your starred tracks into a back-to-back session. The song blacklist keeps all of it honest — blocked tracks never sneak back in through radio or polls.

The magic underneath is smart pre-caching. Resolved tracks are cached in memory and on disk with a 12-hour TTL, so repeat plays, favorites and history start instantly with zero round-trips. Radio tracks are prefetched while the current song plays — the gap between songs is measured in milliseconds, not seconds.

Autoplay is courteous too: when the last human listener leaves, the bot finishes the current song and stops. It never starts a new track into an empty room.