Hatsune Miku
Hatsune Miku was the first Vocaloid developed by Crypton Future Media after they handled the release of the Yamaha vocal Meiko and Kaito. The name of "Hatsune Miku" was conceived soon after the Vocaloid 2 announcements, when an English and Japanese vocal were developed for the character. The intended design was delayed and later used for Megurine Luka instead. Miku was intended to be the first of a series of Vocaloids called the ""Character Vocal Series"", which included Kagamine Rin/Len and Megurine Luka. Each had a particular concept and vocal direction.
Vocaloid 2
VY2 was the second addition to the "VY" series, after VY1 and was designed to compliment the VY1 voice, its codename is "Yūma". The voice of VY2 is masculine and sings in Japanese. It was released on April 25, 2011. VY1 it also was designed to be unbound by having no set avatar allowing it to take any appearance, sex or age. Effort was made to disassociate VY2 with anything personal, bares a sword on the boxart because they felt items such as clothing would be too personal but chose its codename to help direct producers to the direction the voice was heading for of a handsome young male. A producer working with the VY2 found when he wrote a song that VY2 was the only male Japanese vocal that could produce a quality of vocal good enough for the song and he labelled the vocal as the best Japanese male. When producing this vocal, the developers had compare it also with other masculine vocals within the series (excluding Ryuto and Kagamine Len, both of which are voiced by female vocalists), with only the Gackpoid software coming close to VY2.