London EVOLVED is based off of the background music for DanceDanceRevolution X2's PiX minigame.
Like most of the songs part of the EVOLVED series of songs, London EVOLVED has three different versions (London EVOLVED Ver.A, Ver.B and Ver.C), which share the same intro part.
The REFLEC BEAT series use London EVOLVED Ver.A, but use the regular London EVOLVED album art instead of the ver.A variant.
Trivia
London EVOLVED is one of the Replicant D-Action hidden songs in DanceDanceRevolution II.
London EVOLVED was the fourth EXTRA TOUR song in DanceDanceRevolution X3 VS 2ndMIX. It could be played as an EXTRA STAGE since May 30th, 2012.
As of September 26th, 2012, London EVOLVED was unlocked for normal play.
London EVOLVED received new CHALLENGE charts in DanceDanceRevolution X3 VS 2ndMIX, replacing its old CHALLENGE charts from DanceDanceRevolution II.
London EVOLVED's BPM is displayed as 170-340 in the DanceDanceRevolution arcade games' music select screen.
London EVOLVED is the 5th unlockable song of the Pastel Adventure colette Mountain 2 event of REFLEC BEAT colette.
London EVOLVED is the first song of the EVOLVED series that has been crossed over into another BEMANI game.
In the REFLEC BEAT series, London EVOLVED's BPM was shown as 43-370. However, London EVOLVED ver.A's real BPM is 42.5-340. It has since been changed to 43-340 at an unknown date.
London EVOLVED's BPM is also mistakenly displayed as 80-320 in DanceDanceRevolution II.
Difficulty & Notecounts
DanceDanceRevolution difficulty rated from 1 to 20 from X onwards.
REFLEC BEAT difficulty rated from 1 to 10+. (Ratings and notecounts obtained from BEMANIWiki 2nd.)