A change of probability

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A change of probability

Song Information

A change of probability's pop'n music banner.

Artist: 18times per 1,000
Composition/Arrangement: Tatsuya Mizuno
BPM: 150
Length: 1:58
pop'n music Genre: DIGI TECHNO (デジテクノ)
pop'n music Character: ice [4-1P]
First Music Game Appearance: pop'n music 8 CS
Other Music Game Appearances:



Song Connections / Remixes


  • A change of probability is Tatsuya Mizuno's first instrumental song for pop'n music.
  • A change of probability's charts were created by Eiichi Kitsukawa.
  • A change of probability is one of the hidden song unlocks in pop'n music 11's POP'N TOURIST (ポップンツーリスト) event. It could be unlocked from May 19th, 2004 through June 30th, 2004 by reaching STAGE 23.
    • As of June 30th, 2004, it is unlocked for everyone to play.

Music Comment


Song Production Information


This is the first time I've done an instrumental song for pop'n. When I was trying to figure out what to make for a demo, Haya-P told me, "Make something fa~st!", so I made this with only that in mind.

Maybe this isn't as fast as it might be at 150 BPM, but it's fast enough for me. Besides, it's really nice to be able to make a fast song that's almost two minutes long.
Next time, I'll try for 180 BPM...

So anyway, the chart for this song was written by "PAPEHINA". He says the EX chart we anticipated (demanded? forced?) had the most notes in a chart he'd ever written, so that's pretty cool.

Let's face today with fighting spirit as well.

The end.

Character Information


Staff Comments


This is a really cool song that let's you feel both stillness and motion. In the beginning, it was a little simpler. Then I started to make the busy parts a little busier, and it became what it is now. The EX was supposed to be pretty hard, but I guess it wasn't as hard as I thought ... Well, I can't pass it, anyway ...

Difficulty & Notecounts

pop'n music difficulty rated from 1 to 43 through pop'n music 20 fantasia, and 1 to 50 from Sunny Park onwards. (Ratings and notecounts obtained from Pop'n Music Fever and BEMANIWiki 2nd.)

Game Normal Mode Battle Mode
Notecounts 217 367 734 931 440 683
pop'n music 8 CS 9 17 29 37 21 30
pop'n music 11→17 THE MOVIE 9 17 ↑33 ↑39 21 30
pop'n music 18 せんごく列伝→20 fantasia 9 17 33 ↓38 21 30
pop'n music Sunny Park→Present - 23 39 44 21 30
POP'N TOURIST (ポップンツーリスト)
ROUTE A おれはジャイアンさまだ!
ROUTE B ANAHONIKUY -雪の華PuzzLeMix- - - 夜間行殺法
ROUTE C monde des songe (HYPER/EX) - YOUNG DREAM (HYPER) - ロマンス
ROUTE D INNOVATION (HYPER/EX) - Line Times - School Life
STAGES 20-25 クラゲータ (STAGE 20) - テンプラ揚三 (STAGE 22) - A change of probability (STAGE 23) - GRADIUS -FULL SPEED- (STAGE 25)
STAGES 26-30 D-groove REQ (STAGE 26) - でんがなマンガナ (STAGE 28) - ワルドック船長のブルース (STAGE 30/GOAL)