41 pcs. piano keys; 120 pcs. bass keys; 13 pcs. treble registers; 6 register in bass...
41 pcs. piano keys; 120 pcs. bass keys; 7 pcs. treble registers; 2 register in bass...
37 pcs. piano keys; 96 pcs. bass keys; 7 pcs. treble registers; 2 register in bass...
37 pcs. piano keys; 80 pcs. bass keys; 7 pcs. treble registers; 2 register in bass...
34 pcs. piano keys; 72 pcs. bass keys; 5 pcs. treble registers; 0 register in bass...
21 pcs. piano keys; 60 pcs. bass keys; 8 pcs. treble registers; 0 register in bass...
