Before he met singing instructor David Stroud—a onetime coach of American Idol's Adam Lambert—Alexys Paris subjected his naturally mellifluous vocal cords to constant stress, admitting on his website that he would "force notes or yell on pitch." Working in the Institute of Vocal Advancement system, Stroud trains voices to perform in a natural, stable manner. Alexys teaches students how to comfortably transition from the deep-chest register to the high-pitched head register without resorting to voice-straining exertions or discretely switching places with virtuoso body doubles.