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Research->Genre Study->Uncategorized Music->Kepler's Cosmic Harmony
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This page provides information about Kepler's Cosmic
Harmony (the music of the spheres).
I saw a planetarium show and I found an exhibition of "Kepler's
music scale of the planets." I was interested in it, and I
gathered information from mailing-lists and web sites.
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Kepler's idea
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Kepler
was trying to find common rules between music
and planet's movement. His harmony of the
spheres is based on the relative maximum and
minimum angular velocities of the planet
measured from the sun. (It is not a music
scale in the strict sense of the word since
the sound is continuously changing like
choking or sliding.) As the planets move in
their orbits their velocity is lowest when
farthest from the sun and highest when nearest
to it. The increase and decrease of speed
correspond to the rise and fall of sound that
planets produce. The range of sound that the
Venus can produce is very small, since its
orbit is almost a perfect circle.
In such a manner, Kepler allotted to the
planets the musical intervals.
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Planets and Notes
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| Planet |
Note |
MIDI
data |
| Saturn |
G1
A1 B1 A1 G1 |
Download |
| Jupiter |
G2
A2 Bb2 A2 G2 |
Download |
| Mars |
F3
G3 A3 Bb3 C4 Bb3 A3 G3 F3 |
Download |
| Earth |
G3
Ab3 G3 |
Download |
| Venus |
E4
E+4 E4 (+?͂S???̂P) |
Download |
| Mercury |
A3
B3 C4 D4 E4 F4 G4 A4 B4 C5 A4 E4 C4 A3 |
Download |
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Sounds from six planets
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| The six
planets produce six notes and at the most
time, they creates dissonant. However, they
can be consonant at some point within a long
time. Kepler called this "music of
planets." The music encyclopedia
"Grove" says that it may have
happened only ones, perhaps at the time of
creation. We can listen to this harmony if we
make time go faster. The interval between the
Earth and the Venus makes a consonant, so
Kepler thought these planes were a husband and
a wife.
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