dewayne, a pianist, wants to compare sound quality. which scenario describes how he could do this? he plays…

dewayne, a pianist, wants to compare sound quality. which scenario describes how he could do this? he plays two different notes on two different pianos at a different volume. he plays two different notes on the same piano at the same volume. he plays the same note on the same piano at a different volume. he plays the same note on two different pianos at the same volume.

dewayne, a pianist, wants to compare sound quality. which scenario describes how he could do this? he plays two different notes on two different pianos at a different volume. he plays two different notes on the same piano at the same volume. he plays the same note on the same piano at a different volume. he plays the same note on two different pianos at the same volume.

Answer

Brief Explanations:

To compare sound - quality of pianos, variables like note and volume should be controlled. Playing the same note at the same volume on different pianos isolates the piano as the variable affecting sound - quality.

Answer:

He plays the same note on two different pianos at the same volume.