US 7,253,349 B1
Engineers piano with bisymmetrical manuals and accompanying musical notation system
Joseph Clay Saltsman, 1671 Vt Rt 111, Derby, Vt. 05829 (US)
Filed on Jun. 14, 2006, as Appl. No. 11/423,999.
Int. Cl. G10C 3/12 (2006.01)
U.S. Cl. 84—424  [84/423 R; 84/425; 84/428; 84/432; 84/718; 84/719; 84/720; 84/477 R; 84/478; 84/743; 84/744; 84/745; 84/483.1; 84/483.2] 15 Claims
OG exemplary drawing
 
1. A musical keyboard split into two bisymmetrical manuals, comprising:
a first manual for keyboard fingering by a first hand of a user, comprising a first plurality of keys activating a standard pitch progression increasing in pitch from left to right;
a second manual for keyboard fingering by a second hand of a user, spilt from said first manual, comprising a second plurality of keys activating a standard pitch progression increasing in pitch from right to left; wherein:
said keyboard fingering for the first hand applied to said first manual is exactly the same as said keyboard fingering for the second hand applied to said second manual.