The series primarily makes use of Vocaloids, a series of singing synthesizer software, and the songs created using these Vocaloids most notably the virtual-diva Vocaloid Hatsune Miku. The game is the first video game to utilize the Vocaloid software developed by the Yamaha Corporation.
Middle schools, or junior high schools, are schools that span grades 7, 8, and sometimes 5, 6 and 9, which straddle primary and secondary education. Upon arrival in middle school or junior high school, students begin to enroll in class schedules where they take classes from several teachers in a given day.
Secondary school. The liberal arts education at the secondary school level prepares the student for higher education at a university. They are thus meant for the more academically minded students. In addition to the usual curriculum, students of a liberal arts education often study Latin and Ancient Greek.