Tony
Did you mean to say "whole hour WITHOUT using the keyboard? If you,I am in the same boat unless it is a quick NH and I sometimes put my SD40 on a stand and sing over midi or CDG songs.
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact