Start by learning how the tune actually sounds, not just what the chart says. Doxy can look more complicated on paper than it really is, which is why the recording matters so much. By listening closely to the melody, bass movement, and comping, the harmony starts to feel simpler and more logical, giving you a clearer foundation than relying on chord symbols alone.

Next, focus on the II7 chord and how it functions. Instead of expecting a ii minor chord, learn to hear it as a dominant that pushes the harmony forward. Once you recognize this V7 of V7 dominant relationship, the tune will feel a lot more approachable.

Finally, get clear on the I to IV movement that shapes much of the tune’s sound. This relationship gives Doxy its bluesy character, and hearing how it drives the form will help you shape phrases that follow the motion of the tune.