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 (x32010@1)   G (320003@1)  Am (x02210@1)   Em (022000@1)name="chord_133211@1">F     C (x32010@1)   F (133211@1)      GFurui (320003@1)arubamu mekuri arigatoutte tsubu yaita
C (x32010@1)    G (320003@1)    Am (x02210@1)      Em (022000@1)name="chord_133211@1">F     C (x32010@1)   G (320003@1)         CItsumo (x32010@1)itsumo mune no naka hagemashite kureru hito yo

C (x32010@1)  G (320003@1)   Am (x02210@1)      EmHare (022000@1)wataru hi mo ame no hi mo 
F (133211@1)   C (x32010@1)    F (133211@1)GUkabu (320003@1)ano egao
    C (x32010@1)G (320003@1)   Am (x02210@1)  EmOmoide (022000@1)tooku asete mo
F (133211@1)  C (x32010@1)F (133211@1)    C (x32010@1)F (133211@1)   C (x32010@1)       G (320003@1)      COmokage (x32010@1)sagashite yomigaeru hi wa nada sou sou

C (x32010@1)   G (320003@1)     Am (x02210@1)  Em (022000@1)name="chord_133211@1">F       C (x32010@1)        F (133211@1)       GIchiban (320003@1)hoshi ni inoru sore ga watashi no kuse ni nari
C (x32010@1)    G (320003@1)    Am (x02210@1)  Em (022000@1)name="chord_133211@1">F       C (x32010@1)    G (320003@1)     CYugure (x32010@1)ni miageru sora kokoro ippai anata sagasu

C (x32010@1)   G (320003@1)    Am (x02210@1)    EmKanashimi (022000@1)ni mo yorokobi ni mo
F (133211@1)  C (x32010@1)    F (133211@1)GOmou (320003@1)ano egao
      C (x32010@1)   G (320003@1)     Am (x02210@1)    EmAnata (022000@1)no basho kara watashi ga
F (133211@1)  C (x32010@1)F (133211@1)       C (x32010@1)F (133211@1)  C (x32010@1)       G (320003@1)     CMietara (x32010@1)kitto itsuka aeru to shinji ikite yuku

Break:  Just play the intro?

C (x32010@1)  G (320003@1)    Am (x02210@1)     EmHare (022000@1)wataru hi mo ame no hi mo
F (133211@1)    C (x32010@1)   F (133211@1)GUkabu (320003@1)Ano Egao
    C (x32010@1)G (320003@1)   Am (x02210@1)  EmOmoide (022000@1)tooku asete mo
F (133211@1)      C (x32010@1)F (133211@1)     C (x32010@1)F (133211@1)    C (x32010@1)     G (320003@1)       CSamishikute (x32010@1)koishikute kimi e no omoi nada sou sou
F (133211@1)   C (x32010@1)F (133211@1)   C (x32010@1)F (133211@1)    C (x32010@1)     G (320003@1)       CAitakute (x32010@1)aitakute kimi e no omoi nada sou sou