The music of the Shadow Hearts role-playing video game series, developed by Japanese game company Sacnoth (later Nautilus), was primarily composed by Yoshitaka Hirota. Hirota collaborated on the original game with Masaharu Iwata, Yasunori Mitsuda and Ryo Fukuda. For its sequel Shadow Hearts: Covenant, Mitsuda returned and was joined by Kenji Ito and Tomoko Kobayashi. The final game From the New World saw Fukuda and Kobayashi return with newcomer Hirotomi Imoto. The Shadow Hearts series originated in the 1999 role-playing game Koudelka, the music of which was composed by company founder Hiroki Kikuta. Each game has received a soundtrack album, with Hirota also producing an arrange album of Shadow Hearts music.

Hirota's work on the Shadow Hearts series was directly influenced by his work as a sound designer. The first game's music encompassed a wide range of music genres, with Hirota not wanting it to sound like something from a movie. He also sought to emulate his Gothic-style sound design of Koudelka. The score for Covenant increased the dynamic and emotional elements while retaining the original game's musical style. For From the New World, the team incorporated ethnic elements to represent its setting in the Americas. The recurring theme "Icaro" was initially designed to represent the lead characters of Shadow Hearts, and went on to recur in arranged forms in its two sequels. Reception of the music has generally been positive.

Series overview Shadow Hearts is a series of role-playing video games for the PlayStation 2 (PS2) produced by Japanese studio Sacnoth, which was later rebranded as Nautilus. The Shadow Hearts series originated as a continuation of Koudelka, an RPG for the original PlayStation conceived by former Square staff member Hiroki Kikuta, who founded Sacnoth to develop the game. The tone of Koudelka inspired that game's art director Matsuzo Machida (originally credited as Matsuzo Itakura) to create the titular first game, which was set in the same universe as Koudelka. Machida took on the role of director. Shadow Hearts was followed by two sequels—Shadow Hearts: Covenant and the spin-off title Shadow Hearts: From the New World—before Nautilus was absorbed into Aruze in 2007 and ended video game production, ultimately ceasing to exist during corporate restructuring in 2009.

Shadow Hearts Shadow Hearts Original Soundtrack Plus1

The music for the original Shadow Hearts was composed by Yoshitaka Hirota, who had worked on the sound design of Koudelka. Hirota worked on the game's music alongside Masaharu Iwata, Yasunori Mitsuda and Ryo Fukuda. Hirota had originally worked as a sound designer on Koudelka. Mitsuda was both an old friend and a frequent collaborator with Hirota on their earlier projects for Square, contributing around ten songs to the soundtrack. Iwata had previously worked on the score of Tactics Ogre, while Fukuda was brought in by Hirota based on their past experience working on the score for Sonic Shuffle. While creating the soundtrack, Hirota wanted to use his background in sound design to make a successor to the "Gothic" style he created for Koudelkas sound effects. He described the inspiration for the soundtrack as coming more from films than games, directly citing the Japanese film Shark Skin Man and Peach Hip Girl. He also attributed possible influence to the games Kowloon's Gate and Baroque, the latter composed by Iwata. Machida gave Hirota's team a basic outline of the game's setting and premise.

Hirota's intent was to make the soundtrack "beautiful yet destructive", not wanting players to think it was like a movie score. The soundtrack included over fifty songs, which was a large project for Hirota at this time. He included elements of punk, new wave industrial rock, techno, electronic rock and orchestra. His aim was to create "personal, future ethnic music". A track he later remembered fondly was the battle theme "near death experience", and the theme "qu" which he described as a mixture of ambient sampling and Asian musical elements. Upon first hearing the result, producer Jun Mihara was shocked, as to him the music sounded like a random jumble of genres somehow being fitted together. Despite the shock, he was impressed with the young team's efforts, which motivated him to make the game itself match these images.

The game's vocal elements had multiple contributors; the main theme "Icaro" and several additional vocals were provided by Kyoko Kishikawa, while the ending theme "Shadow Hearts" was sung by Hiroko Kasahara. "Icaro" was put together quickly for an internal demo. Hirota wanted the theme to be "short yet striking". Its use in the game's opening sequence where the main protagonist saves the main heroine was intended to show the game's focus on these two characters. Later versions of "Icaro" were used to connect back to that scene and its meaning. The lyrics of "Shadow Hearts" were written by James H. Woan, with lyrics in both Japanese and English. Track titles were also created by Woan.

A 2CD soundtrack album for the game, Shadow Hearts Original Soundtrack Plus1, was published by music label Scitron on June 18, 2001. A reprint of the album was released on January 19, 2005. RPGFan called the music "a score of a beauty and quality rarely seen in an OST, that easily stands among the best in recent memory", praising its ambience and unconventional orchestration, although they found some tracks overly dark. The reviewer ended by lauding Hirota's work on the album. Video Game Music Online gave the album a score of 4.5 stars out of 5. The reviewer, while calling the album in general "a mixed bag", praised the emotion and thematic variety displayed by the music. Particular praise went to the battle theme "Near Death Experience", main theme "Icaro", and the vocal theme "Shadow Hearts". His main criticism was towards tracks such as "But-Dad-Dead-Bed" and "Sweet Pillows", which were cited as either uninspired or poorly constructed. He finished by saying "anyone with a taste for adventure and creativity will enjoy this soundtrack significantly".

Reviewers of the game also praised the music. Gerald Villoria, writing for GameSpot, praised the soundtrack the audio's strongest point despite some repetition. David Smith of IGN praised the variety and quality of the soundtrack, though he felt Mitsuda's tracks were weaker than his other works. Patrick Gann of RPGFan described the soundtrack as "nothing short of brilliant", describing it as potentially the best RPG soundtrack of 2001.

Shadow Hearts II Original Soundtrack

Composition for Shadow Hearts: Covenant, known in Japan as Shadow Hearts II, was led by Hirota. Mitsuda returned from the original Shadow Hearts, along with series newcomers Kenji Ito and Tomoko Kobayashi; Kobayashi, a staff member at Sacnoth, was responsible for writing some short story-related pieces. The soundtrack includes over sixty songs. Mitsuda contributed between five and six solo pieces, along with working on a few collaborative tracks. The music for the game, as included on the soundtrack album, was composed between June 2002 and the end of 2003.

According to sound director Hirotomi Imoto, he asked the composers to take the original sound for Shadow Hearts, deconstruct it and rebuild it. The composers used different tones for their tracks; Hirota created "dark" tracks, Mitsuda focused on melodies with a "beautiful face", and Ito's themes were "mental". Due to the game's shift in tone compared to the original, Hirota wanted a soundtrack that was more dynamic and emotional without surrendering the signature Shadow Hearts sound. Mitsuda had difficulty during early production as he wanted to adapt his music to better fit the Shadow Hearts universe, but at Hirota's insistence he maintained his own style which was fitted into the game's overall score.

Covenant was Ito's very first project for the PS2, his first time working with Hirota and Mitsuda, and the first time he ever collaborated on a major track, this being the final boss theme "The 3 Karma". "The 3 Karma" was co-composed by Hirota, Mitsuda and Ito. The piece came together after the three composers had a private meeting, and after the speed and tempo were set each was allowed to go in their own direction. Because of the battle's style, a limited number of instruments were used for the theme. During the recording process, there was a combination of scripted music and improvisations from the performers.

The previous game's main theme "Icaro" was included as a part of the soundtrack, with Hirota rearranging it while preserving its core musical notes. The ending theme "Getsurenka" was written by Hirota, with lyrics by Kumiko Hasegawa, and performed by Mio Isayama. "Getsurenka" was described by Machida as the "true feelings" of main heroine Karin. Its tone, according to the producer Asako Oikawa, was decided upon once he and Machida had finalized the game's ending. The lyrics were intended to be the words heroine Karin Koenig wanted to say to Yuri but was unable to before that point. Upon receiving the request, Hasegawa was inspired by their combined effect with a near-full moon outside her home to turn off all the lights and write the lyrics by moonlight; the song was written as a love poem. Isayama was so impressed by the emotion within the lyrics that she "sang from [her] heart".

A 2CD soundtrack album, Shadow Hearts II Original Soundtrack, was published by Team Entertainment on March 24, 2004. Video Game Music Online was very positive, citing the battle themes as one of the album's strengths and giving praise to the environmental and dungeon themes. He enjoyed Mitsuda's contributions despite their low number, but felt Ito's use of electronica made his tracks contrast against the rest of the album. Jesse Jones of RPGFan was generally positive, with tracks such as "Astaroth" and the ending theme receiving particular praise, but he felt that several tracks felt lacking compared to the first game. Some tracks including "Town of Twilight" suffered in Jones's eyes due to their overuse in Covenant.

Jeremy Parish of 1UP.com praised the soundtrack, positively mentioning Mitsuda's contributions. GamePro positively noted that the music "gets dramatic during every battle", and Bethany Massimilla of GameSpot found it enjoyable and praised the battle and main themes. IGNs Jeremy Dunham felt that the soundtrack was not as good as the first game, but still called it a strength of the game. Mark Marrow of PALGN said the score "does a nice job of fitting in with the context of each area", and RPGFans Mike Bracken echoed Dunham's opinion on the score's weakness compared to Shadow Hearts despite saying that anyone interested in game music should get the soundtrack album.

Shadow Hearts: From the New World Original Soundtrack

Composition for From the New World was once more led by Hirota, who was joined by Fukuda, Kobayashi (credited as Tomoko Imoto), and newcomer Hirotomi Imoto, the latter also acting as sound director. Due to the game's setting of the Americas, the soundtrack made heavy use of ethnic instruments and vocals, with the overall theme being "thirst"; this was meant to evoke both the desert environment and people's thirst for connections. For the lyrics, the team used both Latin and Italian. The production of the soundtrack, as with the rest of the game, was on a tight schedule and caused trouble for some members.