Overview
The Peachy Key (ももいろの鍵) is a Vocaloid track by independent producer いよわ (Iyowa), featuring Hatsune Miku. Released as a self-titled album in 2024, the song runs at a brisk 165 BPM with an energetic yet melodic instrumental bed. The lyrics, written entirely by Iyowa, open with a gentle, almost childlike question, "Are you crying? Are you angry?", before unfolding into a determined narrative of mutual emotional support: holding hands, warming trembling fingers, and finding the courage to turn a key and open a door together.
The song made its rhythm-game debut in SEGA's CHUNITHM VERSE on February 20, 2025, joining maimai でらっくす PRiSM PLUS roughly three weeks later on March 13, 2025. In maimai it is categorized under the niconico & VOCALOID (niconico＆ボーカロイド) genre. The MASTER chart, designed by アマリリス (amaryllis), carries a difficulty constant of 12.7, placing it among the more demanding 12+ charts in the PRiSM PLUS update, while the EXPERT chart by はっぴー (Happy) offers a level 9 alternative. The official English subtitle "The Peachy Key" appears in the music video title, though the Japanese title ももいろの鍵 ("momoiro no kagi") literally means "peach-colored key."
Videos
Charts
DX
BASIC
2(2)
174 notesDesigner: -|Tap 135Hold 10Slide 4Touch 17Break 8
ADVANCED
6(6)
314 notesDesigner: -|Tap 258Hold 14Slide 11Touch 28Break 3
EXPERT
9(9)
396 notesDesigner: はっぴー|Tap 305Hold 45Slide 22Touch 13Break 11
MASTER
12+(12.7)
640 notesDesigner: アマリリス|Tap 395Hold 90Slide 89Touch 36Break 30
Trivia
- ももいろの鍵 was the first song by Vocaloid producer いよわ (Iyowa) to appear in maimai as of PRiSM PLUS.
- The song debuted in CHUNITHM VERSE on February 20, 2025, about three weeks before its maimai release on March 13, 2025.
- Iyowa self-released the album ももいろの鍵 in 2024, with this title track serving as the album's lead song.
- The official English subtitle for the song is 'The Peachy Key,' as shown in the title of the official music video on YouTube.
- At 2 minutes and 10 seconds, the song's length is typical for Vocaloid tracks used in rhythm games.
- The MASTER chart (level 12+, constant 12.7) places the song among the more difficult 12+ charts in the PRiSM PLUS update.
- The EXPERT chart designer はっぴー (Happy) is also known for contributing charts across multiple maimai versions.
- The MASTER chart designer アマリリス (amaryllis) is a regular maimai notes designer whose charts often appear in the DX series.
- The song's lyrics are in Japanese and feature a conversational back-and-forth structure, weaving themes of emotional vulnerability and reassurance.
FAQ
- Who composed ももいろの鍵?
- The song was composed, arranged, and written by Vocaloid producer いよわ (Iyowa).
- Who sings ももいろの鍵?
- The vocals are provided by Hatsune Miku (初音ミク), the iconic Vocaloid voicebank.
- What is the English title of ももいろの鍵?
- The official English subtitle is 'The Peachy Key', as seen in the official music video title on YouTube. The Japanese title ももいろの鍵 literally means 'peach-colored key'.
- When was ももいろの鍵 added to maimai?
- It was added to maimai でらっくす PRiSM PLUS on March 13, 2025, at the update's launch in both Japanese and Asian versions.
- What difficulty is the MASTER chart of ももいろの鍵 in maimai?
- The MASTER chart is level 12+ with a difficulty constant of 12.7, making it one of the more challenging 12+ charts in the PRiSM PLUS update.
- Who designed the maimai charts for ももいろの鍵?
- The EXPERT chart was designed by はっぴー (Happy), and the MASTER chart was designed by アマリリス (amaryllis). Basic and Advanced charts have no credited designer.
- Did ももいろの鍵 appear in other rhythm games before maimai?
- Yes, it first appeared in SEGA's CHUNITHM VERSE on February 20, 2025, roughly three weeks before its maimai debut.
- What album is ももいろの鍵 from?
- The song is the title track of Iyowa's self-titled album ももいろの鍵, released in 2024.
