Role lead singer series (キャラクター? ボーカル? シリーズ (CV series for short) is a series of virtual singer software developed and sold by CRYPTON FUTURE MEDIA based on Yamaha's VOCALOID 2 speech synthesis engine. CV0 1 Hatsune Miku (Hatsune Hatsune) was released on August 3, 20071day, and CV02 "Silent Bell, Lian (? レンンン) was listed in February of the same year, and cv03“megurine luka "was released on October 30th, 2009.
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