Day charts (led by the Sun) are expressed in major keys. Night charts (led by the Moon) are represented in minor keys. Each traditional planet is assigned a scale degree, while Uranus, Neptune, and Pluto add their own harmonic dimension.
The result is a harmonic portrait of your chart—unique chords express your distinct planetary placements. These sonifications can serve as a meditative tool, a novel keepsake, or a way to deepen your sense of hearing and connection to astrology.