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Chord diagram for F
Chord diagram for D
Chord diagram for B
Chord diagram for Ab
Chord diagram for Gb
Chord diagram for C
Chord diagram for A
Chord diagram for Eb
Chord diagram for G
Chord diagram for Db
Chord diagram for Bb
Chord diagram for E
      Chokkan 2

Note: Chords in parenthesis are arrangements made by me. They mostly indicate some 
changes in the bass line.

Intro:  F°7    (Bass:  Diminished scale:  F-D-B-D-B-G#-f)

Theme   F#-   C°7
      F#-      A°7 (C°7  D#°7)
      G-      C#°7
      G-      A#°7 (C#°7  E°7)
       A°7

C#-7 (/B)
Verse:
     C#- (7)     F#-7    G# (7)
     C#-           B     G# (7)

C#-7
Pre-Chorus
    B       E  (/B)   C#-   (x2)
    A       B (pause) B (pause)  G# (pause)  
(/B)
    A       B                    G#          C#-7

Repeat theme, verse and chorus
G-   C#°7
G-   A#°7 (C#°7  E°7)  (Pause)

Guitar: G-  (7)  E-   G- (7)  E-

F#°7
Repeart Intro
Theme 2   G-   C#°7 (x2 same arrangement)
          G#-   D°7   (x2)
Ending chord: E°7
    

Source: https://tabs.ultimate-guitar.com/tab/morning_musume_otomegumi/chokkan_2_chords_477811

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