An apparatus, and an associated method, facilitates user understanding of the audio component of media that is played back at a device having media player functionality. A driver bit is mounted to a front face of a piston of the air cylinder. The computer usable medium is configured to display a graphical user interface having input fields corresponding to the actuators and mechanical elements, and to display a graphical representation of output response data of the machine using inputted parameters. A pressure vessel surrounds the combustion chamber.