405nm (Ryu mix)

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405nm (Ryu☆mix)

Song Information

405nm (Ryu☆mix)'s jacket.

Artist: Another Infinity
Composition/Arrangement: Another Infinity
BPM: 177
Length: 1:50
Movie: VJ GYO (overlays by かーる)
First Music Game Appearance: beatmania IIDX 20 tricoro
Other Music Game Appearances:



Song Connections / Remixes

  • 405nm (Ryu☆mix) is part of Ryu☆'s series of songs named after wavelengths of light.
  • A long version of 405nm (Ryu☆mix), titled 405nm (Ryu☆Mix Extended), appears on Ryu☆'s fifth album, Plan 8.
  • The original version of 405nm (Ryu☆mix), titled just 405nm, also appears on Ryu☆'s fifth album, Plan 8.
  • A remix of 405nm by Hommarju, titled 405nm (Hommarju Remix), can be found on Ryu☆'s compilation album, Ryu☆BEST -STARLiGHT-.
  • A remix of 405nm (Ryu☆mix) and 405nm, titled 405nm(Shu※mix) appears in SOUND VOLTEX IV HEAVENLY HAVEN.


  • 405nm (Ryu☆mix) marks the first time Ryu☆ and Starving Trancer use their Another Infinity alias in-game in the beatmania IIDX series.
  • 405nm (nanometers) is the wavelength of blue or violet light.
    • Blu-ray disc players use 405nm diode lasers to read its discs.
  • 405nm (Ryu☆mix) is one of the bistro saucer 2nd Set unlocks of jubeat saucer. It could be unlocked from November 1st to 30th, 2012.
    • In jubeat saucer fulfill, it can be unlocked as part of saucer macchiato's Side Menu from April 23rd, 2014.
    • In jubeat prop, it can be unlocked by playing it as a BONUS TUNE from May 28th, 2015.
    • In jubeat Qubell, it is one of the Garnet unlocks of the dig dig Qubell unlocking system.
    • In jubeat clan, it can be unlocked in the jubeat SHOP.
    • In jubeat festo, it can be purchased at the emo MART.
    • In jubeat Ave., it is one of the CONCIERGE unlocks of the LIGHT CHAT unlocking system from August 17th, 2022.
  • According to Another Infinity, the inspiration for the song title of 405nm came from the blue lights illuminating the venue of the Rainbow☆Rainbow Release Party held on January 29th, 2012.
  • 405nm (Ryu☆mix) is available in beatmania IIDX INFINITAS as part of the beatmania IIDX INFINITAS Music Pack vol.4 (beatmania IIDX INFINITAS 楽曲パック vol.4).
  • 405nm (Ryu☆mix)'s jubeat (2021) ratings were adjusted to its jubeat festo ratings on March 7th, 2022.

Song Production Information

Another Infinity

Continuing from 532nm's green laser, comes 405nm's blue laser.

During the EXIT TUNES ACADEMY Ryu☆ 3rd Album "Rainbow☆Rainbow" Release Party that was held in ZeppTokyo, around 2700 guests were packed into the dark venue as the beautiful and transient blue lasers fly around the place.

This song is the result of that spectacle.

Video Production Information


Difficulty & Notecounts

beatmania IIDX difficulty rated from 1 to 12.
jubeat to clan difficulty rated from 1 to 10, and 1 to 10.9 from festo onwards. (Ratings and notecounts obtained from jubeat@Wiki and BEMANIWiki 2nd.)

beatmania IIDX

Game SP Difficulty DP Difficulty
Notecounts - 467 898 1301 - 469 910 1361 -
beatmania IIDX 20 tricoro→Present - 5 9 11 - 5 9 11 -
beatmania IIDX INFINITAS - 5 9 11 - 5 9 11 -
beatmania IIDX ULTIMATE MOBILE - 5 9 11 - - - - -


Game Level
Basic Advanced Extreme
Notecounts 511 770 908
jubeat saucer→clan 7 9 10
jubeat festo→Present 7 9.6 10.3
jubeat plus 7 9 10
jubeat plus (Android) 7 9 10
jukebeat 7 9 10
jubeat (2021) 7 9.6 10.3
Ryu☆'s wavelengths of light series of songs
405nm (Ryu☆mix) - 532nm - 800nm