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http://whitneymusicbox.org/index.php?var=v6

6 - microtones

A musical realization of the motion graphics of John Whitney as described in his book "digital harmony" Animation and music by Jim Bumgardner of krazydad.com and the wheel of lunch . Jim makes free puzzles , including sudoku , killer sudoku , kakuro , mazes , and thousands of other puzzles . Music box variations: var. 0 - chromatic - 48 tines var. 1 - harmonics of 55hz var. 2 - harmonics of 20hz var. 3 - harmonics of 48hz, reversed var. 4 - harmonics of 48hz, palindrome var. 5 - chromatic - 88 tines var. 6 - microtones var. 7 - harmonics - 120 tines, reversed var. 8 - chromatic - 88 organ pipes, rev. var. 9 - chromatic - 88 bars, rev. var. 10 - chromatic - 64 pipe cyrpto calliope var. 11 - minute waltz - 60 keys, 60 seconds var. 12 - chromatic - prime numbers only var. 13 - chromatic - non-primes only var. 14 - stereo var. 15 - stereo - 120 var. 16 - stereo - 210 var. 17 - hand cranked var. 18 - stereo drone (new) var. 19 - stereo sonar (new) var. 20 - bell carol (new)