First time submitting.  Noticed it wasn't one here.  
These might not be the exact chords, but they work pretty well.  
It's basically Pachelbel's Canon, in C.  
You can also use these chords to play "Shima Uta" and "Shimanchu nu Takara", if 
you play around with them a bit.  


Nada Sou Sou (Begin)


Intro: C G Am Em F C G C


C     G    Am     Em F     C     F        G
Furui arubamu mekuri arigatoutte tsubu yaita
C      G      Am        Em F     C     G           C
Itsumo itsumo mune no naka hagemashite kureru hito yo

       C    G     Am        Em
Hare wataru hi mo ame no hi mo 
F     C      F  G
Ukabu ano egao
    C  G     Am    Em
Omoide tooku asete mo
F    C  F      C  F     C         G        C
Omokage sagashite yomigaeru hi wa nada sou sou

C     G       Am    Em F       C          F         G
Ichiban hoshi ni inoru sore ga watashi no kuse ni nari
C      G      Am    Em F       C      G       C
Yugure ni miageru sora kokoro ippai anata sagasu

       C     G      Am      Em
Kanashimi ni mo yorokobi ni mo
F    C      F  G
Omou ano egao
      C     G       Am      Em
Anata no basho kara watashi ga
F    C  F         C  F    C         G       C
Mietara kitto itsuka aeru to shinji ikite yuku

Break:  Just play the intro?

       C    G      Am       Em
Hare wataru hi mo ame no hi mo
F      C     F  G
Ukabu Ano Egao
    C  G     Am    Em
Omoide tooku asete mo
F        C  F       C  F      C       G         C
Samishikute koishikute kimi e no omoi nada sou sou
F     C  F     C  F      C       G         C
Aitakute aitakute kimi e no omoi nada sou sou