041 Rotation Plate “041 Rotation Plate” has been added to your cart. View Cart Look inside Details Add To Cart Preview Buy (A$2.90) 041 Rotation Plate The Rotation Plate for Altered Scale 041 as found in our eBooks. The COMK Cycle of Movable Keys for music improvisation and composition. 1 pages Post navigationPrevious post: 040 Rotation PlateNext post: 042 Rotation Plate