Not to make too much of this issue, normal game play, under player control was accompanied by music, sound effects and voice which sounded fine. In fact the music and sound effects are very good. The music set the mood of the game, be it urgent or mysterious. The sound effects and vocals were also excellent, again helping provide a more immersing experience. There are separate controls for music, sound and voice.
Volume allows the user to change the volume of music, sound and actor's voice volume.
Unfortunately these are only accessible during player interaction mode. I sometimes found MC starting up blasting at me and was unable to turn down the volume for some time. When in game interaction mode, the screen is divided into various sections. The top line becomes visible only when the cursor is moved to the top of the screen. Clicking on Help provides the user with general adventure game playing hints and a tutorial which is a guide to the user interface.