What are some alternatives?
Faktory - a station where factors reside and trade; a building or set of buildings with facilities for manufacturing; the seat of some kind of production… See the full definition
CueBot - A better way to request for songs at a party 🎉
Sidekiq - Sidekiq is a simple, efficient framework for background job processing in Ruby
Play This - Create a club and let people control your playlist
Resque - Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.
Heartbeat - Listen to music with your friends together, on Spotify