You may be looking for Jacob Pevsner, the current Master of Sound.
This minifigure has only appeared in television episode(s) Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
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The Master of Sound was an adult man who wore a fez and who was one of the Elemental Masters during the Serpentine Wars and the battles against Acronix and Krux. Unlike his descendant Jacob Pevsner-their exact relationship is unknown-he used his voice to channel the power of sound as opposed to a musical instrument.