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Keita Haga

Keita Haga participated in the music for "Night of the Ancient Magus."

Additional information
Duties of the Night of the MagicianMusic
Responsibilities of the 2005 PC version of HollowMusic
Night of the Magicians PostMusic collaboration and sound effects production
Night of the Magicians PostIn 2012, the original song was credited as KATE's composition
Fate/stay night positions2004 PC original theme song production list - lyricist
Fate/hollow ataraxia position2025 REMASTERED edition lyrics for Open The Doors
Fate/hollow ataraxia positionComposer under the name Open The Doors KATE for the 2025 REMASTERED edition
Night of the Magicians PostComposer of the album version of 'The Night of the Witch Original Soundtrack'
Fate/stay night positionsLyrics for the album version of "Fate/stay night ORIGINAL SOUND TRACK (2004)."
Fate/stay night positionsProducer of the album version of "Fate/stay night ORIGINAL SOUND TRACK (2004)"
Fate/stay night positionsComposer of the album version of "Fate/stay night [Realta Nua] Original Sound Track (2007)."
Fate/stay night positionsLyrics for the album version of "Fate/stay night [Realta Nua] Original Sound Track (2007)."
Fate/stay night positions2007 First Edition Second CD Recollection Producer
Fate/stay night positionsProducer of the album version of "Fate/stay night [Realta Nua] Original Sound Track (2007)."
Fate/hollow ataraxia positionComposer of the album version of "Fate/hollow ataraxia ORIGINAL SOUND TRACK."
Fate/hollow ataraxia positionLyrics for the album version of "Fate/hollow ataraxia ORIGINAL SOUND TRACK."
Fate/hollow ataraxia positionComposer of the 2005 PC theme edition listed in the secondhand database
Fate/hollow ataraxia positionLyricist for the 2005 PC theme edition listed in the secondhand database
Fate/hollow ataraxia positionComposer of the album version of "hollow (2005 theme song single)."
Fate/hollow ataraxia positionLyrics for the album version of "hollow (2005 theme song single)"

The production of "Night of the Ancient Magus."

Responsible for the music of this work.

Music credit

In official music interviews, the name KATE is used, and Keita Haga is the same person's name.

Music for the 2005 PC version of 'hollow'

In the 2005 PC version of 'hollow', credited as music.

Productions related to Night of the Magician

In the 2012 brochure, I explained that the composer uses KATE's credit, while other works use his real name; The music collaboration began with the theme of Hideyuki Fukazawa, and the sound effects were recreated by him.

In the 2012 brochure, I explained that the composer uses KATE's credit, while other works use his real name; The music collaboration began with the theme of Hideyuki Fukazawa, and the sound effects were recreated by him. Keita Haga's signature creation "Hikaru Lunch" by KATE.

In the 2012 brochure, I explained that the composer uses KATE's credit, while other works use his real name; The music collaboration began with the theme of Hideyuki Fukazawa, and the sound effects were recreated by him. Keita Haga's signature creation "Hikaru Lunch" by KATE. KATE (Keita Haga) credited as the composer for the album version of 'Mahoutsu no Yoru Original Soundtrack.'

Fate/stay night-related productions

Keita Haga was credited with the lyrics in the 2004 PC original theme song production sheet.

Keita Haga was credited with the lyrics in the 2004 PC original theme song production sheet. Keita Haga credited the lyrics for the album version of "Fate/stay night ORIGINAL SOUND TRACK (2004)." Keita Haga was credited as producer on the album version of "Fate/stay night ORIGINAL SOUND TRACK (2004)." KATE credited the composer for the album version of "Fate/stay night [Realta Nua] Original Sound Track (2007)." Keita Haga credited the lyrics for the album version of "Fate/stay night [Realta Nua] Original Sound Track (2007)." Keita Haga was credited as producer during the second CD recollection of the first press in 2007. Keita Haga credited the producer for the album version of "Fate/stay night [Realta Nua] Original Sound Track (2007)."

Fate/hollow ataraxia-related production

Keita Haga credited the lyrics for the 2025 REMASTERED edition of Open The Doors. Keita Haga credited the 2025 REMASTERED edition of Open The Doors as the composer under the name KATE.

Keita Haga credited the lyrics for the 2025 REMASTERED edition of Open The Doors. Keita Haga credited the 2025 REMASTERED edition of Open The Doors as the composer under the name KATE. KATE credited the composer for the album version of "Fate/hollow ataraxia ORIGINAL SOUND TRACK." Keita Haga credited the lyrics for the album version of "Fate/hollow ataraxia ORIGINAL SOUND TRACK." KATE is credited as composer in the 2005 PC theme edition listed in the secondhand database. Keita Haga credited the 2005 PC theme edition listed in the secondhand database as the lyricist. KATE credited as the composer on the album version of "hollow (2005 theme song single)." Keita Haga credited the lyrics for the album version of "hollow (2005 theme song single)".

Colleagues from Compile and founding members of TYPE-MOON

Keita Haga is a new compiler at the same time as Takashi Takeuchi and Seibei, belonging to different departments, but they are familiar because they live in the same dormitory. The three later joined Nasu Mushroom to become the four founding members of TYPE-MOON.

Career choices and initial music equipment

As university approached employment, he chose between continuing with a band or joining a game company, hoping to keep creating music with a stable job. His musical influences include RPG scores for Dragon Quest and Final Fantasy, as well as hard rock and heavy metal.

When producing the first version of "Tsukihime," there was no specific musical style instruction for the music; he decided it himself. After Compile's bankruptcy, his living conditions and equipment were limited, so he completed all possible production using a single audio source and a cheap PC.

FGO's mix check and Kengo adaptation

To accommodate players who use headphones, he used headphones for final checks during FGO mixing. In Part 1.5, the battle theme of the Sword Master was adapted from the map theme in an accelerated version. After speeding up, the length was too short, so he added the intro and the second half.

"Emiya ~Mugen no Kensei~" required Japanese styles and instruments consistent with other swordmaster songs, so he took over and notified his longtime collaborator James Harris in advance.

Selection and Division of Roles for FGO Old Songs

During FGO's preparations, the principle was established not to use old songs unless necessary, with the Fuyuki arc being an exception due to its close ties to the old series. The selection of old songs related to the story is mainly decided by Nasu, while the song selection for the event is mainly decided by Haga.

Music production for the 2021 Yueji remake

Since 2011, Haga has expanded and confirmed remastered old songs during his spare time. Around 2016, after the song demand list was formed and the new song requirements were clarified, he invited Fukasawa to join.

For the remake, Haga worked hard to complete a sample listening version, then submitted it to Fukasawa to produce the final output with his own tone, ensuring consistent musical transitions between different composers.

The production team decided on core music such as the new "Archueid Theme (Moonlight)," "Tsukihime:re," and "Gekka :re," then expanded other themes from this framework.

During production, remastered tracks and new tracks were progressed simultaneously, commissioned to add ten or twenty songs in batches, with the final scale roughly doubling the original plan.

Related entries

References

Data compiled on: 2026-10-07.

本版编辑：免费机器翻译 · 2026-10-15

内容许可：CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/

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