The best way to play this is with a capo on the 1st fret.  It sounds great with a 12 string!
I will list mandolin/original chords at the bottom.

Intro (Capo 1):  D   Am7   G    Am7   D   Am7   G  repeat
Those same chords play the same way throughout the verses and chorus'

D           Am7
Lazy old day

G         Am7 D
Rolling away

D               Am7 G
Dreaming the day away
Don't want to go
Now that I'm in the flow
Crazy amazing day

One red balloon
Floats to the moon
Just let it fly away
I only know
That I'm longing to go
Back to my lazy day

G     Bm   A         D
And how it sings and how it sighs
    G      Bm     A
And how it never stays

   Bm       A        D
And how it rings and how it cries

     G      Bm    A
And how it sails away...
away... away....


Mandolin/original chords:
D=Eb (0113)
Am7=Bbm7 (3344)
G=Ab (1122)
Bm=Cm (0133)
A=Bb (0311)