By contrast , his C - 3 organ was not used for stunts .
Emerson continued to play his original C - 3 for many years , using it on all the ELP tours throughout the 1970s .
By contrast , his C - 3 organ was not used for stunts and Emerson continued to play his original C - 3 for many years , using it on all the ELP tours throughout the 1970s .