Vocaloid 4 Editor

(My translation from the Japanese website)

Vocaloid is a voice synthesis technology / software defeloped by Yamaha which will sing for you Just by inputting the lyrics. All that is needed to make Vocaloid sing is a computer, this Vocaloid Editor, and a voice library (type of voice). There are various types of voice libraries, each having its own personality.

(Original description from the website)

VOCALOIDはメロディーと歌詞を打ち込むだけで歌ってくれるヤマハが開発した歌声合成技術・ソフトウェアです。歌わせるのに必要なものはPC本体、VOCALOIDエディターと呼ばれるソフトウェア、歌声ライブラリ（歌声の種類）と呼ばれるソフトウェアの3点。歌声ライブラリには個性豊かな様々な種類があります。

Application Details:

Super Maintainers: About Maintainership