From a psychological viewpoint, the skills of musicians are many and diverse, and they are generally acquired in parallel. Here, we address the ability to recognize pitch intervals and structures of western tonal music. While many computer tools exist to test and develop those skills, they tend to focus on relatively low levels of expertise. Our goal was to develop and test at a more advanced level that includes the recognition of any tone set selected from the 12 tones of the chromatic scale. We focus on the perception of relative rather than absolute pitch.