Symphony is a subscription-based asynchronous job system. It allows you to define jobs that watch for lightweight events from a distributed-messaging AMQP broker, and do work based on their payload. It includes several executables under bin/: symphony:: A daemon which manages startup and shutdown of one or more Workers running Tasks as they are published from a queue. symphony-task:: A wrapper that runs a single task, useful for testing, or if you don't require the process management that the symphony daemon provides.