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Published on Jan 30, 2013
Leopold Godowsky's Study No. 45, based on Frederic Chopin's Etude in A-flat major (Trois nouvelles etudes No. 2), performed by Marc-André Hamelin, accompanied by a graphical score. FAQ
Q: What do the colors mean? A: Chopin's original etude focused on the technical problem of the 2/3 polyrhythm (left hand plays two notes in the time it takes for the right hand to play three). Godowsky extended this to more complex polyrhythms, for example (ratios from treble to bass): 0:07 6/8 0:40 6/10 0:45 6/4/10 1:15 9/3/6/4 1:49 6/6'/16/2 2:05 3/9/16/2 2:12 6/12/16/2 In this video, I have colored the 2-based rhythms (2,4,8,16) blue, the 3-based rhythms (3,9) red, the 5-based rhythms (10) green, and the 6-based rhythms (6,12) violet. There are some notes in free (irregular) rhythms, which I have colored brown/orange. In a couple of passages, the rhythm is out of phase (first note of a group doesn't fall on a downbeat, but is shifted to be off-beat); these notes are circled in white.