Kyo's singing is considered a pivotal aspect of the band, and he has gained recognition for his distinctive vocal work and for his large range and versatility, being able to "howl, croon, emote cleanly, scream, shriek, growl, bellow, and make nearly inhuman sounds." Jurek has compared him favorably to experimental and avant-garde vocalists Mike Patton and Diamanda Galas. "Loudwire" wrote "Sporting incredibly low death metal gutturals, Kyo can also turn a complete 180 as one of metal's highest shriekers." Dane Prokofiev of "PopMatters" said that his "natural ease at and inclination towards striking such a stark contrast between the two opposite ends of the human vocal spectrum can be obtained as only a kind of pre-birth winning lottery ticket—you know, that much coveted prize we call “talent”."