211 Rotation Plate “211 Rotation Plate” has been added to your cart. View Cart Look inside Details Add To Cart Preview Buy (A$2.90) 211 Rotation Plate Rotation Plate for Altered Scale 211 as found in our eBooks . The COMK Cycle of Movable Keys for music improvisation and composition. 1 pages Post navigationPrevious post: 210 Rotation PlateNext post: 212 Rotation Plate