A defining sound in On Green Dolphin Street is the movement from major to parallel minor. Hearing this relationship clearly gives shape to the opening section and helps you connect the harmony instead of treating it as isolated chords. Studying how players like John Coltrane and Dick Oatts navigate this shift shows how to move between these sounds with clear melodic direction.

The B section is built on ii–V–I progressions in two key areas, so it’s essential to hear and connect these resolutions. By focusing on voice leading—especially how the 7th resolves to the 3rd—you can link these progressions into a single, continuous idea instead of separate harmonic events.

The last 8 bars move through several minor chords, and to navigate this section clearly, you need a deep understanding of functional harmony. Each of these chords acts like a temporary key center, and the tune quickly shifts between them. Hearing where each chord comes from and how these brief tonal centers connect is essential to making sense of the progression.