Overview
アディショナルメモリー (Additional Memory) is a song by Japanese producer じん (Jin), the creator of the multimedia Kagerou Project (カゲロウプロジェクト) series. Featuring Hatsune Miku on vocals, the track was originally released on Jin's 2018 album メカクシティリロード (Mekaku City Reload) before arriving in the maimai arcade rhythm game series as part of the launch lineup for maimai でらっくす (maimai DX) on July 11, 2019 across all regions.
Driven by a brisk 200 BPM tempo, the song weaves vocaloid-pop melodies with lyrical themes of fading memories, regret, and unspoken feelings, signature motifs of the Kagerou Project universe. The title "Additional Memory" echoes the series' preoccupation with recollection and loss. In the game, the MASTER chart (designed by シチミヘルツ) stands out for a lyrical slide pattern that traces the line "夕焼ける空 滲むメロディ" (the setting sun sky, a bleeding melody), directly connecting the chart's visual flow to the song's narrative. The EXPERT chart was designed by ロシェ＠ペンギン. The Basic difficulty was originally set at level 4 and later adjusted downward to level 2 starting from the UNiVERSE PLUS update, reflecting a recalibration of the song's early-tier difficulty.
Videos
Charts
DX
BASIC
2(2)
95 notesDesigner: -|Tap 68Hold 7Slide 4Touch 12Break 4
ADVANCED
6(6)
257 notesDesigner: -|Tap 216Hold 13Slide 12Touch 10Break 6
EXPERT
9+(9.6)
450 notesDesigner: ロシェ@ペンギン|Tap 365Hold 46Slide 10Touch 21Break 8
MASTER
12(12.5)
585 notesDesigner: シチミヘルツ|Tap 423Hold 43Slide 91Touch 10Break 18
Trivia
- アディショナルメモリー is one of several Kagerou Project songs to appear in the maimai series, tying into the broader narrative universe Jin built across music, novels, manga, and anime.
- The song was added to maimai でらっくす at launch (July 11, 2019) in all three regions, Japan, international, and China, making it one of the foundational DX-era tracks.
- The MASTER chart's designer シチミヘルツ (Shichimi hertz) included a lyric-matched slide pattern at the line 「夕焼ける空 滲むメロディ」 (the setting sun sky, a bleeding melody), where the Slide notes trace the melody in sync with the text.
- The Basic chart was originally level 4 from maimai DX through UNiVERSE, then reduced to level 2 starting with the UNiVERSE PLUS update, reflecting a re-evaluation of its difficulty.
- Achieving Rank S on the MASTER chart unlocks the title 「友達なんかに、なりたくなかった」 (I didn't want to become friends), which quotes a key line from the song's lyrics. This title was originally silver-grade in the external CiRCLE PLUS service before being downgraded to bronze in-game.
- The song's production credits include Jin on composition, lyrics, arrangement, and guitar; Hideyuki Gushimiyagi on arrangement and guitar; Mashiro Shirakami on bass; Yuumao on drums; and しづ (Shizu) as the video creator.
- The album メカクシティリロード (Mekaku City Reload, 2018) is part of the Kagerou Project discography, which also includes albums like メカクシティデイズ and メカクシティレコーズ.
FAQ
- Who composed アディショナルメモリー?
- The song was composed, written, and co-arranged by じん (Jin), the creator of the Kagerou Project multimedia series. It also features guitar by Jin and Hideyuki Gushimiyagi, bass by Mashiro Shirakami, and drums by Yuumao.
- Which version of maimai did アディショナルメモリー first appear in?
- アディショナルメモリー was added at the launch of maimai でらっくす (maimai DX) on July 11, 2019, and was available in all regions from day one.
- Who sings アディショナルメモリー?
- The vocals are provided by Hatsune Miku (初音ミク), the Vocaloid voicebank synthesized by Crypton Future Media.
- What is the meaning of アディショナルメモリー's title?
- The title translates to 'Additional Memory' from English. It reflects the song's themes of layered recollections, fading memories, and the emotional weight of past experiences, recurring motifs in the Kagerou Project universe.
- What difficulty level is アディショナルメモリー's MASTER chart?
- The MASTER chart is rated level 12 with a difficulty constant of 12.5, placing it in the mid-range of maimai DX level-12 songs. It features 585 total notes with a notably high Slide note count of 91.
- Is アディショナルメモリー part of a larger series?
- Yes, the song is part of the Kagerou Project (カゲロウプロジェクト), a multimedia franchise by Jin that spans music, novels, manga, and an anime adaptation (Mekakucity Actors).
- Who designed the MASTER and EXPERT charts for アディショナルメモリー?
- The MASTER chart was designed by シチミヘルツ (Shichimi hertz) and the EXPERT chart was designed by ロシェ＠ペンギン (Rocher@penguin).
- Did アディショナルメモリー's difficulty change over time?
- Yes. The Basic difficulty was originally level 4 from launch through maimai DX UNiVERSE, and was lowered to level 2 starting with the UNiVERSE PLUS update.
