029 Rotation Plate “029 Rotation Plate” has been added to your cart. View Cart Look inside Details Add To Cart Preview Buy (A$2.90) 029 Rotation Plate The Rotation Plate for Altered Scale 029 as found in our eBooks. The COMK Cycle of Movable Keys for music improvisation and composition. 1 pages Post navigationPrevious post: 028 Rotation PlateNext post: 030 Rotation Plate