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 (xx0232@1) Am7 (x02010@1) G (320003@1)  Am7 (x02010@1) D (xx0232@1) Am7 (x02010@1) G (320003@1)repeat
Those same chords play the same way throughout the verses and chorus'

D (xx0232@1)         Am7Lazy (x02010@1)old day

G (320003@1)       Am7 (x02010@1)name="chord_xx0232@1">D
Rolling away

D (xx0232@1)             Am7 (x02010@1)name="chord_320003@1">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 (320003@1)   Bm (x24432@1) A (x02220@1)       DAnd (xx0232@1)how it sings and how it sighs
    G (320003@1)    Bm (x24432@1)   AAnd (x02220@1)how it never stays

   Bm (x24432@1)     A (x02220@1)      DAnd (xx0232@1)how it rings and how it cries

     G (320003@1)    Bm (x24432@1)  AAnd (x02220@1)how it sails away...
away... away....


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