Hirasawa, an artist from their roster, to compose music for the series. Hirasawa took the role because of a wish to work with producer Satoshi Koizumi, whose personality drew Hirasawa in after requesting him to dispel the image that anime soundtracks had. The composer was asked to write the anime's main theme first, and it was presented to Koizumi and director Masami Ōbari in late 1990, before animation had started. Hirasawa wrote and performed all the music for the OVA, in his film score composer debut (previous soundtrack work amounted to commercial jingles and pro wrestling entrance themes). Similarly to his solo albums Water in Time and Space, The Ghost in Science and Virtual Rabbit, Hirasawa mixed together electronic and symphonic sounds, using elements across a broad range of music styles, with a large focus on classical music. At the time, Hirasawa thought of anime and movie soundtracks only as enhancements and not as standalone works, and made the soundtracks considering it as "a job" and "entertainment", employing an epic tone and dramatic exaggeration in his composing. He drew songwriting elements from his solo albums throughout the soundtrack, and used already-made songs from them as ending themes and insert songs. The first soundtrack was made simultaneously with Virtual Rabbit, and was made by Hirasawa basing himself on production materials. Detonator Orgun 3 was entirely recorded on Hirasawa's private Studio Wireself. Hirasawa eventually got tired of working on the series, and considered Detonator Orgun 3 to be the worst album of his solo career, yet also considers the experience helpful in making later soundtracks, in particular the music for the Berserk series, and regards the "grand and delicate" technique for orchestral tones he developed through this soundtrack as guidance for his later works in general. Series writer enjoyed the soundtrack, later commissioning Hirasawa to compose for his fantasy manga Glory Wars; this music was later released as an image mini-album of the same name. To promote the album, the remix of "Bandeira Travellers" (used as the ending theme of episode 1) was released a month ahead as a single and a sampler Mini CD, while the opening and ending themes of episode 1 were distributed to interested parties. In addition to the episode soundtracks, a drama CD was also released, containing select music from the soundtracks and audio from the series itself. The series' main theme was included on the 2007