Zero-G mentioned in the promotions related to Vocaloid 3 that they had a male and female pair of English vocals in development. While the male was never released, Avanna, the female, was. AVANNA was expected in the summer of 2012, but was delayed over quality related issues. She was regarded by her company as the sweetest and clearest vocal they had ever produced. Avanna was noted for her sales success compared to all past English vocals by Zero-G. In 2013, AVANNA was Zero-G's most popular product for the entire year, and the first VOCALOID from the company to top their own charts. She was also the only VOCALOID to appear in the company's top 25 products for the year of 2013. In the following year of 2014 Avanna once again claimed the no.1 spot for best seller, thus making her the first Vocaloid release to also remain the best Zero-G seller for two consecutive years in a row. The position of no.1 was held by her once again in 2015. She was, however, almost beaten by newcomersDex and Daina despite both being out for a much shorter time period than her. Also in 2015 Crypton's on-line download store Sonicwire announced that Avanna had been the 9th most successful Vocaloid product sold on their website. She was the only "Engloid" present on the list.
Characteristics
The artist hired to illustrate her art was EmpathP. EmpathP had been asked on if she was prepared to do the artwork. The art was done during August and September 2012, and adjustments were made throughout. The eventual design, however, was rejected by Yamaha themselves for not being an "anime"-based style. The decision was made to start from scratch and redo the design in a style Yamaha preferred. Zero-G requested that AVANNA should have a fantasy-based look to her and was originally conceptualized as an Elf. During the process of AVANNA's design, even though alternate colors were considered, Zero-G specifically asked for her to have black hair. According to EmpathP, the reason why the AVANNA's hair was lengthened was because she was requested to make her look more feminine. Though the Elf concept was dropped, it can still be seen in the background of her physical release cover art.
