Guillaume Costeley Seigneur Dieu ta pitié. wmv
Keyboard version using 19tone equal temperament (according to the composer s specification). It is Costeley s only known microtonal composition. More technical information on the computergenerated tuning of this performance can be found in my article at N. B. Please note a correction to the graphic that appears at 1 53 describing Pitch Depression. The piece in ending on G, instead of A represents an overall pitch depression of twothirds of a tone, and not onethird as stated. This can be seen with reference to the keyboard layout as shown in the video.
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