''Sigma'' (stylized with the Greek symbol ''Σ'') is the only studio album by Japanese musical unit
REOL. It was released on October 19, 2016 by
Toy's Factory
is a Japanese record label founded in the late 1980s as a subsidiary of the entertainment company VAP, based in Japan. On May 30, 1990, it was established as an independent company. It is an associate member of the Recording Industry Assoc ...
in two physical editions—a standard CD, and a CD and DVD bundle—and for digital consumption. Prior to their formation, each member—
Reol, Giga and Okiku—worked with each other on numerous musical projects until finalizing a record contract with
Toy's Factory
is a Japanese record label founded in the late 1980s as a subsidiary of the entertainment company VAP, based in Japan. On May 30, 1990, it was established as an independent company. It is an associate member of the Recording Industry Assoc ...
in early 2016. The material on the album were written, sung and co-composed by Reol, while production was handled by all three artists and arranged by Giga.
''Sigma'' is an
electronic dance
Electronic dance music (EDM), also referred to as dance music or club music, is a broad range of percussive electronic music genres originally made for nightclubs, raves, and List of electronic dance music festivals, festivals. It is generally ...
album that incorporates elements of
hip-hop
Hip-hop or hip hop (originally disco rap) is a popular music genre that emerged in the early 1970s from the African-American community of New York City. The style is characterized by its synthesis of a wide range of musical techniques. Hi ...
, contemporary
pop
Pop or POP may refer to:
Arts, entertainment, and media
* Pop music, a musical genre
Artists
* POP, a Japanese idol group now known as Gang Parade
* Pop! (British group), a UK pop group
* Pop! featuring Angie Hart, an Australian band
Album ...
and
club sounds. Lyrically, the record delves into enjoyment, love, having fun and a variety of expressions, all encased by their current state of mind, as described by them as "transitory". Upon its release, ''Sigma'' received positive reviews from
music critics
Music journalism (or music criticism) is media criticism and reporting about music topics, including popular music, classical music, and traditional music. Journalists began writing about music in the eighteenth century, providing commentary on ...
. Several commentators complimented the group's musical direction, alongside Reol's vocals and commercial appeal.
Commercially, ''Sigma'' experienced moderate success in Japan, reaching the top ten on both the
Oricon Albums Chart
The Oricon Albums Chart is the Japanese music industry standard albums popularity chart issued daily, weekly, monthly and yearly by Oricon. Oricon originally published LP, CT, Cartridge and CD charts prior to the establishment of the Oricon A ...
and Japan Hot Albums chart, the latter hosted by ''
Billboard
A billboard (also called a hoarding in the UK and many other parts of the world) is a large outdoor advertising structure (a billing board), typically found in high-traffic areas such as alongside busy roads. Billboards present large advertis ...
''. In order to promote the album, the album tracks: "ChiruChiru", "Give Me a Break Stop Now", and "YoiYoi Kokon" were served as digital singles, accompanied with additional
music video
A music video is a video that integrates a song or an album with imagery that is produced for promotion (marketing), promotional or musical artistic purposes. Modern music videos are primarily made and used as a music marketing device intended to ...
s co-created by Okiku. Furthermore, REOL had appeared on several promotional formats such as live performances, magazines and interviews on
social media
Social media are interactive technologies that facilitate the Content creation, creation, information exchange, sharing and news aggregator, aggregation of Content (media), content (such as ideas, interests, and other forms of expression) amongs ...
.
Background
Reol and GigaP had consistently worked together prior to forming the musical unit
REOL, providing compositions and vocals to several Japanese vocaloid acts such as
Hatsune Miku
, officially code-named CV01, is a Vocaloid software voicebank developed by Crypton Future Media. Its official mascot is depicted as a sixteen-year-old girl with long, turquoise twintails. Miku's personification has been marketed as a virt ...
. Additionally, Reol and art director Okiku had been long-time friends and occasionally collaborated with her music videos and packaging for her releases.
Reol and GigaP's first project as a duo was ''No Title'', which was released on August 17, 2014 through Japanese label Celo Project. Furthermore, Reol continued working on her debut studio album, titled ''Gokusaishiki''. It was released on July 29, 2015 through Victor Entertainment, and reached the top ten on the
Oricon Albums Chart
The Oricon Albums Chart is the Japanese music industry standard albums popularity chart issued daily, weekly, monthly and yearly by Oricon. Oricon originally published LP, CT, Cartridge and CD charts prior to the establishment of the Oricon A ...
. Subsequently, Reol, GigaP, and Okiku signed a record contract with Japanese label
Toy's Factory
is a Japanese record label founded in the late 1980s as a subsidiary of the entertainment company VAP, based in Japan. On May 30, 1990, it was established as an independent company. It is an associate member of the Recording Industry Assoc ...
, forming themselves as a unit under Reol's name—capitalized as REOL. Despite this, the trio stayed anonymous with their identity, using
anime
is a Traditional animation, hand-drawn and computer animation, computer-generated animation originating from Japan. Outside Japan and in English, ''anime'' refers specifically to animation produced in Japan. However, , in Japan and in Ja ...
-influenced illustrations and
chibi designs to depict themselves; several other animations were also distributed in their subsequent music videos. But on August 18, REOL made their debut appearance in the music video for their track "Give Me a Break Stop Now".
Composition and material
The material on ''Sigma'' were written, composed and produced by member Reol, whom also provided vocals to each track; bandmate, GigaP, received additional music credits towards composing and arranging the album.
The album was recorded between 2015 and 2016 in Japan, and was mixed GigaP. Additionally, Hiromichi Takiguchi mastered the record alongside GigaP, which was finalized on September 1 with the music videos.
Despite the groups experimentation with
J-Pop
J-pop (often stylized in all caps; an abbreviated form of "Japanese popular music"), natively known simply as , is the name for a form of popular music that entered the musical mainstream of Japan in the 1990s. Modern J-pop has its roots in trad ...
, general
pop music
Pop music is a genre of popular music that originated in its modern form during the mid-1950s in the United States and the United Kingdom.S. Frith, W. Straw, and J. Street, eds, ''iarchive:cambridgecompani00frit, The Cambridge Companion to Pop ...
and indie rock music, both as a trio and individually,
''Sigma'' is an
electronic dance
Electronic dance music (EDM), also referred to as dance music or club music, is a broad range of percussive electronic music genres originally made for nightclubs, raves, and List of electronic dance music festivals, festivals. It is generally ...
album that incorporates elements of
hip-hop
Hip-hop or hip hop (originally disco rap) is a popular music genre that emerged in the early 1970s from the African-American community of New York City. The style is characterized by its synthesis of a wide range of musical techniques. Hi ...
and
club sounds.
According to GigaP, the record was heavily influenced by Westernized music, both contemporary pop and EDM, and also noted inspiration of
K-Pop
K-pop (; an abbreviation of "Korean popular music") is a form of popular music originating in South Korea. It emerged in the 1990s as a form of youth subculture, with Korean musicians taking influence from Western Electronic dance music, danc ...
and modern Korean pop culture.
The first song created for the project was "Detarame Kidding", an "interesting" collaboration between the two but was briefly shelved. However, Reol started to re-edit the track and after completing it, she
Skype
Skype () was a proprietary telecommunications application operated by Skype Technologies, a division of Microsoft, best known for IP-based videotelephony, videoconferencing and voice calls. It also had instant messaging, file transfer, ...
d GigaP the results.
This allowed the singer to compose the tracks herself, resulting into the three album inclusions "VIP Kid", "Re:" and "404 Not Found".
In an interview with ''
Billboard
A billboard (also called a hoarding in the UK and many other parts of the world) is a large outdoor advertising structure (a billing board), typically found in high-traffic areas such as alongside busy roads. Billboards present large advertis ...
'' Japan, the members commented that the lyrical content emphasizes enjoyment and how they are feeling at current state, noting it as "transitory"; they had chosen the album tracks "YoiYoi Kokon" and "Give Me a Break Stop Now" as examples of this. Similarly, the group told Music-Lounge.jp that songs like "Give Me a Break Stop Now" delves into Reol's anger and irresponsibility, while "YoiYoi Kokon" was inspired by the
Gion Matsuri
The is one of the largest and most famous festivals in Japan, taking place annually during the month of July in Kyoto. Many events take place in central Kyoto and at the Yasaka Shrine, the festival's patron shrine, located in Kyoto's famous Gio ...
event in
Kyoto
Kyoto ( or ; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. , the city had a population of 1.46 million, making it t ...
, and represents a sign of celebration and change.
Although majority of the tracks were commissioned throughout its production process, Reol stated that the song "Re:" was originally left out of the final product. However, because Okiku and GigaP identified it as one of their favorite recordings—Okiku described it as "lovely" and "cute"—Reol added into the record. On the album, tracks like "Konoyo Loading..." and "Summer Horror Party" contrast between an "innocent" and "cute" vocal delivery, and the group's initial aesthetic and lyrical content. Reol believed that these tracks were examples of her departure from her rock-influenced work as a solo artist.
''Sigma'' also includes one interlude track, "Final Sigma", which samples Reol's previous releases alongside material from ''Sigma''.
Release and packaging
On August 18, 2016, the group announced the release for their studio album ''Sigma'', scheduled on October 19, 2016.
Released in both physical and digital formats,
pre-ordered versions through Japanese retail CDJapan.co.jp included a limited edition poster featuring the members.
Two bonus tracks were issued through different stores in Japan; the first was the Tenka Toritai remix of "OedoRanvu" at Tower Record stores, whilst an Okinawa Ikitai remix of "Drop Pop Candy" was announced at Tsutaya shops. Both remixes were distributed on music cards, where consumers had to use a special code to access the recordings.
The title of the album was based on several theories; member Reol said it first came from the thought of a somewhat
internet slang, then it progressed with the literal sense of
Summation
In mathematics, summation is the addition of a sequence of numbers, called ''addends'' or ''summands''; the result is their ''sum'' or ''total''. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, pol ...
(a term in
Mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
), and the phenomenon of artists' interest of symbolizing their records with one word/phrase.
Additionally, she said that the sigma term through mathematics represented the group as a whole.
The cover art and design was directed by Okiku and photographed by Kenichi Sonehara; it depicts Reol in a small 4x4 room, effected by static imagery. According to member Okiku, the artwork was thought out by the result of the songs' lyrics and sound.
Singles
"ChiruChiru", "Give Me a Break Stop Now", and "YoiYoi Kokon" were served as digital singles on October 7, 2016 via
iTunes Store, as part of a pre-order promotion with the album. Additionally, the songs received music videos, all produced and co-directed by the group member Okiku. The first promotional visual was "ChiruChiru", which was released June 30, 2016; it features footage of random locations in Japan, overlapped with several animated characters and lyrics of the song. It also includes several video shots of objects, such as tree branches, flowers, and building walls. The second visual was "Give Me a Break Stop Now", published on August 18 via
YouTube
YouTube is an American social media and online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim who were three former employees of PayPal. Headquartered in ...
and
NicoNico
, known before 2012 as , is a Japanese video sharing service based in Tokyo, Japan. "Niconico" or "nikoniko" is the Japanese sound symbolism, Japanese ideophone for smiling. As of 2021, Niconico is the 34th most-visited website in Japan, accordi ...
. REOL made their debut appearance in the video, which represents the group's vocalist as a queen-like monarch and several other personas.
The third video from the album was "YoiYoi Kokon", which incorporates several traditional Asian objects, symbols and aquatic life. The song is sung with archaic Japanese words, and a "modern" translation is transcribed on the video, as well. It was distributed through the band's YouTube and Reol's NicoVideo account on September 15. In order to promote the album's remaining material in the days prior to release, Reol uploaded a crossfade video that included snippets of each track and additional visuals that represented them.
Reception
Upon its release, ''Sigma'' received positive reviews from
music critics
Music journalism (or music criticism) is media criticism and reporting about music topics, including popular music, classical music, and traditional music. Journalists began writing about music in the eighteenth century, providing commentary on ...
. Although the record wasn't analysed in depth, an editor at Barks.jp described the commercial appeal and sound as "delicious". Similarly, a member at JRockNews.com commended its production, and highlighted Reol's singing and rapping abilities.
An editor from Music-Lounge.jp complimented the records exploration with electronic dance music, and also highlight Reol's vocal deliveries. Additionally, the reviewer noted that the material worked well without sounding "uncomfortable" with rap, EDM and other deliveries from the group.
Japanese magazine ''CD Journal'' commended ''Sigmas mixture of genres and Reol's vocal performance. The reviewer also labelled the material "catchy", and believed that Reol's singing portrayed a "big personality within the group."
Commercially, the album experienced moderate success in Japan. It debuted at number six on the Daily
Oricon Albums Chart
The Oricon Albums Chart is the Japanese music industry standard albums popularity chart issued daily, weekly, monthly and yearly by Oricon. Oricon originally published LP, CT, Cartridge and CD charts prior to the establishment of the Oricon A ...
, marking it the fifth highest debut entry on October 18.
The following day, it stayed in the same position. The record further stayed in the top ten for the following five days and, based on these statistics, it opened at number eight on the weekly chart, accumulating 10,026 sales.
It fell outside the top 50 the following week, one of the biggest drops between October 26 to November 2. At the end of October, Oricon ranked the album at number 39 with claimed sales of 11,493 copies.
''Sigma'' proved to be generally successful on three competent charts hosted by ''
Billboard
A billboard (also called a hoarding in the UK and many other parts of the world) is a large outdoor advertising structure (a billing board), typically found in high-traffic areas such as alongside busy roads. Billboards present large advertis ...
''. In Japan, it debuted at number eight on the Hot Albums chart, and number seven on the Top Albums Sales chart.
The following week saw a slump in sales, sliding to number 31 and number 44 on both charts. During its third week, it fell outside the top 50 on the Hot Albums chart to number 76, and number 66 on the Top Album Sales chart. In the United States, ''Sigma'' made its debut at number nine on the
World Albums Chart; it was the fourth highest debuting album and furthermore the second highest Japanese entry of November 5, 2016, behind ''
Fantome'' by
Hikaru Utada
, also known mononymously as Utada, is a Japanese and American singer, songwriter, and producer. She is considered to be one of the most influential and best-selling musical artists in Japan. She is best known by international audiences for w ...
.
Additionally, the record experienced success worldwide upon its release on
iTunes Store; it topped the iTunes chart in Singapore, Thailand, Philippines, Indonesia, Malaysia, Taiwan and Hong Kong, and managed to enter the top 20 in countries throughout Europe, the United States, Australia, New Zealand, areas in South East Asia and Canada. Its success outside of Japan was noted as a similarity to the success of ''
Fantôme'' (2016) by Japanese musician
Hikaru Utada
, also known mononymously as Utada, is a Japanese and American singer, songwriter, and producer. She is considered to be one of the most influential and best-selling musical artists in Japan. She is best known by international audiences for w ...
, which was released three weeks prior to ''Sigma''.
Promotion
In order to promote ''Sigma'', REOL had appeared on several promotional formats such as live performances, magazines and interviews. They made their first live debut UNICA Vision at
Seibu-Shinjuku Station
is a railway station in Shinjuku, Tokyo, Japan, operated by the private railway operator Seibu Railway. It is the terminus of the 47.5 km (30 mile) Seibu Shinjuku Line, which extends to in Saitama Prefecture.
The station is located appr ...
on October 17, 2016, where they also signed autographs and previewed new tracks from the album. They made two guest appearances on Japanese radio stations: one for FM Yokohama's Tresen+, whilst the second was for a special broadcast with
Japan Hot 100
The ''Billboard Japan'' Hot 100 is a record chart in Japan for songs. It has been compiled by ''Billboard Japan'' and Hanshin Contents Link since February 2008. The chart is updated every Wednesday at Billboard-japan.com ( JST) and every Thursday ...
. Additionally, Reol made an appearance on
Tower Records
Tower Records is an international retail franchising, franchise and online music store that was formerly based in Sacramento, California, United States. From 1960 until 2006, Tower operated retail stores in the United States, which closed when ...
free magazine ''Bounce'', the October 25 issue. Furthermore, REOL went on to promote the record with several
social media
Social media are interactive technologies that facilitate the Content creation, creation, information exchange, sharing and news aggregator, aggregation of Content (media), content (such as ideas, interests, and other forms of expression) amongs ...
interviews; their first interview was with Natalie.mu.
11 days later, the group visited ''CD Journal'' to conduct a small interview, alongside announcing the release of ''Sigma'' that same day.
Then between 20–21 October, the group paid a visit to EMTG Music and Music-Lounge.jp to talk about their work, and their most recent interview was with Realsound.jp on October 30.
Track listing
Personnel
Credits adapted from the liner notes of the special edition of ''Sigma''.
*Recorded in Japan, 2015–16 by REOL. Mixed by Giga, mastered by Hiromichi Takiguchi and Giga.
Music
*Reol – vocals, background vocals, composing, production, songwriting, programming, recording
*Giga – composing, arranging, background vocals, mixing, mastering, production
*Okiku – production
*Tenka Torita – remixing
*Okinawa Ikitai – remixing
*Hiromichi Takiguchi – mastering, engineering
*Koichi Inaba – executive producer
Visuals
*Toshitaka Shinoda – art creative director
*Shun Sasaki – art direction, design
*Kenichi Sonehara – photographer
*Chie Syutou – CG Retoucher
*Miyabi – stylist
*Atushi Takita – hair stylist
*Shino Ariizumi – make-up artist
*Okiku – art producer, art director
*Asuka Takizawa – art producer
*Manami Oshiro – art producer
*Yuichiro Okuchi – Co-ordination with
Sony Music Communications
Management
*Koichi Inaba – A&R producer
*Yuri Ichinose – A&R director
*Mayu Tamimoto – A&R public relations
*Koji Iwase – A&R assistant
*Momomi Funayama – management assistant
*Junko Hasegawa – sales promotion
*Nao Higashikage – sales promotion
*Takahiro Fujimoto – sales promotion
*Nyurika Delic – management
*Nera K – management
*Koko Shimana – management
Charts
Certifications
References
External links
''Sigma''at Reol's official website.
{{Authority control
2016 debut albums
2010s Japanese-language albums