One of, if not my favorite classical piece composed by JS Bach (some say by his son or student) as a keyboard study for students. The 13th in a series of 15 inventions, the best one, by far I think… 2 simple polyphonic voices interplaying, creating a whole much greater than the sum of its parts… sheer genius 
Here we have it with layered sine wave instrumentation, a light, gentle and pure sound. Hope you enjoy!
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