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A Thread for Random Videos


Super Squirrel

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info below, spoilered for length.  

 

 

Purpose

-------------------------
The piece attempts to aurally model the solar system as accurately as possible whilst making a piece of music of CD length.

Method
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Orbital data from Wikipedia was taken for each of the (then) nine planets of the solar system.
The orbital period was halved repeatedly so that, according to the octave principle in acoustics, frequencies could be derived which would be octave-equivalent to the planetary orbits but audible to humans.

Implementation
-------------------------
Each planet yielded six audible frequencies (all octave-equivalent) and, at longer lengths (fewer halvings) six musically meaningful durations.

 

Rather than produce a static model, which would just be a chord, I decided to use each of the frequencies and durations in turn for each planet.

 

This means that for a given 'planet' in this model, the melodic form is broadly a semibreve in the bass followed by a minim in the tenor, a crotchet in the alto and so on, with each successive note being an octave higher and half the duration of the previous one.

All the planets are presented simultaneously. This means that the various melodies are layered to produce non-overlapping patterns, always slightly different.

Durations(sec)
Mercury 0.453 0.906 1.812 3.624 7.248 14.496

Venus 0.578 1.157 2.314 4.628 9.257 18.514

Earth 0.47 0.94 1.88 3.76 7.524 15.048

Mars 0.442 0.884 1.768 3.537 7.075 14.15

Jupiter 0.697 1.394 2.789 5.579 11.158 22.315

Saturn 0.432 0.865 1.731 3.462 6.924 13.848

Uranus 0.617 1.235 2.47 4.941 9.883 19.767

Neptune 0.605 1.211 2.422 4.845 9.691 19.383

Pluto 0.455 0.911 1.822 3.645 7.291 14.582

Frequencies (hz)
Mercury 2260.345 1130.172 565.086 282.543 141.271 70.635

Venus 3539.661 1769.83 884.915 442.457 221.228 110.614

Earth 2177.588 1088.794 544.397 272.198 136.099 68.049

Mars 2315.605 1157.802 578.901 289.45 144.725 72.362

Jupiter 2936.761 1468.38 734.19 367.095 183.547 91.773

Saturn 2366.231 1183.115 591.557 295.778 147.889 73.944

Uranus 3315.368 1657.684 828.842 414.421 207.21 103.605

Neptune 3380.968 1690.484 845.242 422.621 211.31 105.655

Pluto 2247.057 1123.528 561.764 280.882 140.441 70.22

 

 

 

more videos in the series on youtube

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