Mule Variations was released in 1999, and displays almost the full gamut of Waits’ creative range. So, let’s take a closer look at a few choice songs, and what they might be able to tell you about your speakers. There are also some interesting spatial features on Mule Variations. Whether you are streaming, listening on vinyl, CD or over the radio, there are certain common traits to each of the songs on Mule Variations that should go uncompromised. If you’re a Waits fan looking to put your new system to the test, give Mule Variations a whirl.