Overview
ハート・ビート (styled heart・beat in English releases) is a character song from SEGA's Irodorimidori (イロドリミドリ) multimedia project, performed by Serina Akesaka (CV: Emi Nitta), one of the project's core band members. The track was composed and arranged by Keiichi Hirokawa of MONACA, with lyrics by uRy and an animated music video directed by Hiromitsu Kawasaki (credited as 鑓田 / alpha complex). Originally debuting in CHUNITHM PLUS in February 2016, ハート・ビート crossed over into maimai PiNK PLUS later that year and has remained a mainstay across both arcade rhythm game series. Its high-tempo BPM of 212 and energetic pop-rock arrangement mirror the upbeat, aspirational lyrics about chasing dreams and following one's heartbeat, themes that align closely with Serina Akesaka's Irodorimidiri character persona. The maimai version uses a slightly shortened edit (2:23) compared to the full CHUNITHM cut, and the complete song appears on Irodorimidori's first album, 単位 (Tani). Over the course of maimai's version updates, ハート・ビート's chart levels have been revised multiple times, with the Master difficulty eventually settling at level 13 (constant 13.4), a demanding arrangement designed by しろいろ that features 148 Slide notes and a dense 818-note total.
Videos
Charts
Trivia
- ハート・ビート is the sixth song introduced in SEGA's Irodorimidori multimedia project, which follows a fictional school music club.
- The song first appeared in CHUNITHM PLUS on February 18, 2016, before arriving in maimai PiNK PLUS on November 4, 2016 (truth data date).
- Composer Keiichi Hirokawa is a longtime MONACA affiliate known for work on the Idolmaster series and numerous SEGA rhythm game soundtracks.
- Lyricist uRy has contributed to multiple Irodorimidori songs and other SEGA game vocal tracks.
- The official music video features a distinctive animated visual style directed by Hiromitsu Kawasaki (鑓田), who has frequently collaborated on Irodorimidori video content under the alpha complex banner.
- In Asian English releases of maimai, the song's title is displayed as 'heart・beat' and the artist as 'Serina Akesaka(CV:Emi Nitta)'.
- Earlier maimai and CHUNITHM versions credited the artist as '明坂 芹菜(イロドリミドリ)' rather than including the voice actress credit.
- The maimai edit runs 2:23, seven seconds shorter than the CHUNITHM version (2:30); the full-length track is included on Irodorimidori's debut album 単位.
- The song's maimai genre has changed over time: originally classified as ORIGINAL & JOYPOLIS in PiNK PLUS through FiNALE, then simplified to ORIGINAL in でらっくす, and finally recategorized as オンゲキ&CHUNITHM starting from でらっくす PLUS.
- Chart levels have seen multiple revisions across maimai versions: Basic started at level 5 and rose to 6, Advanced from 7 to 8, Expert from 9 to 10+, and Master climbed from 11 up to 13.
- The Expert chart (level 10+, constant 10.6) was designed by はっぴー (Happy), while the Master chart (level 13, constant 13.4) was designed by しろいろ (Shiroiro).
- The Master chart's 148 Slide notes represent roughly 18% of its total 818 notes, making it a slide-heavy composition relative to its Tap count.
FAQ
- Who composed ハート・ビート for maimai?
- ハート・ビート was composed and arranged by Keiichi Hirokawa of the MONACA music production company, with lyrics written by uRy.
- What is ハート・ビート?
- ハート・ビート (heart・beat) is a character song from SEGA's Irodorimidori (イロドリミドリ) multimedia project, sung by Serina Akesaka (CV: Emi Nitta), one of the project's fictional band members. It debuted in CHUNITHM PLUS before crossing over to maimai PiNK PLUS.
- When was ハート・ビート added to maimai?
- ハート・ビート was added to maimai PiNK PLUS on November 4, 2016. It originally appeared in CHUNITHM PLUS earlier that year on February 18, 2016.
- Who is the vocalist of ハート・ビート?
- The vocalist is Serina Akesaka, voiced by Emi Nitta (新田 恵海). The artist is credited as 明坂 芹菜(CV:新田 恵海) in Japanese releases.
- What difficulty level is ハート・ビート's Master chart in maimai?
- The Master chart is level 13 with a difficulty constant of 13.4. It was designed by しろいろ (Shiroiro) and contains 818 total notes, including 148 Slide notes.
- Who designed the charts for ハート・ビート in maimai?
- The Expert chart was designed by はっぴー (Happy), and the Master chart was designed by しろいろ (Shiroiro). The Basic and Advanced charts do not have credited designers.
- Is ハート・ビート available on CHUNITHM?
- Yes, ハート・ビート originally debuted in CHUNITHM PLUS. It has appeared in multiple CHUNITHM versions and is now available by default from the Irodorimidori song selection.
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