this page honors Johannes Kepler (1571-1630)

Model of the solar system by Johannes Kepler

Kepler's Platonic solid model of the Solar system from Mysterium Cosmographicum (1596). This image is in the public domain; retrieved on September 13, 2012, from Wikimedia Commons.

Book II of The Harmony of The World (published in 1619 by Johannes Kepler) is subtitled "On the Congruence of Harmonic Figures." It features mathematical definitions, propositions, conclusions, and beautiful diagrams created by Kepler to illustrate his ideas about the essential nature of regular figures.

Listen to the music! ♫ ♪
About the music: this is a tone poem or musical orrery for flute, alto flute, harp, synthesizer, fretless bass, and percussion. Choose a format to play or download: MP3 | MIDI.

The edition of The Harmony of The World that I consulted was published in 1967 as volume 209 in the Memoirs of the American Philosophical Society held at Philadelphia for Promoting Useful Knowledge.