Hatsune Miku
, sometimes referred to as Miku Hatsune, is the name of a Vocaloid software voicebank developed by Crypton Future Media and its official moe anthropomorph, a 16-year-old girl with long, turquoise twintails. She uses Yamaha Corporation's Vocaloid 2, Vocaloid 3, and Vocaloid 4 singing synthesizing technologies. She also uses Crypton Future Media's Piapro Studio, a singing synthesizer VSTi Plugin. She was the second Vocaloid sold using the Vocaloid 2 engine and the first Japanese Vocaloid to use the Japanese version of the Vocaloid 2 engine. Her voice is modeled from Japanese voice actress Saki Fujita. Miku's personification has been marketed as a virtual idol and has performed at concerts onstage as an animated projection (rear cast projection on a specially coated glass screen).
Exist Trace
In 2013, Exist Trace introduced their 'new world' musical direction, where long-time main lyricist/composer miko would officially be taking a dual-vocal position with Jyou. The twin vocal style was emphasized on 2013's single "Diamond". In 2014's "Spiral Daisakusen", the pair again share front billing and the center spot on the music video. The first album to fully incorporate the twin vocal style, "World Maker" (2014), revealed an improved duet system, where vocals are typically heavier towards Jyou in allocation, but making good use of miko's sweeter counterbalance. After an album gap of 1.5 years, the band released the "This Is Now" mini-album, an energetic offering with more of a metal feel than previous releases (including a return to growling from Jyou and backup snarls from Omi and Naoto), as well as re-recorded versions of the singles "Twin Wings" and "Shout Out". In Japan, the EP sold out within a day, across such stores as ZEAL LINK, Disk Union and BRAND-X.