Here's my best shot at the strum pattern, too: 
F#          F#sus2     F#          F#sus2 
D--D-U--U-|D--D--D--|D--D-U--U-|D--D--D 
 
Also, putting the emphasis of your strums on the bass (deeper) notes on each 
Esus2 chord makes it sound nice. Specifically, on the three down-strums 
while playing Esus2, hit the low E and A strings more than the other strings. 
 
Verse 1
F#  F#sus2    F#  F#sus2      F#              F#sus2 
Life   is sweet   in the belly of the beast 
       F# 
In the belly of the beast 
F#sus2        F#   F#sus2     F#    F#sus2    F#                  F#sus2 
And with her song  in your heart, it can never bring you down 
       F#                  F#sus2 
It can never bring you do-own 
 
F#  F#sus2 
 
Verse 2
F#   F#sus2  F#   F#sus2   F#                 F#sus2 
Lost  in a maze   of a thousand rainy days 
     F# 
Of a thousand rainy days 
F#sus2      F#    F#sus2  F#    F#sus2    F#             F#sus2 
But when I heard   her voice,  oh it led me to the end 
       F#             F#sus2 
Yes it led me to the end 
 
Chorus
                 D#m            A#m 
'Cause when she sings I hear a symphony 
          B                      F# 
And I'm swallowed in sound as it echoes through me 
     D#m                A#m 
I'm renewed, oh, how I feel alive! 
        B                          B 
Through autumn's advancing, we'll stay young, go dancing 
 
(riff) 
 
Bridge
C#            G#m    C#               D#m   B 
As the music plays, feel our bodies swa-a-ay 
C#               G#m          B       
When we move as one, we stay young... ohh 
 
Verse 3
F#  F#sus2    F#  F#sus2      F#              F#sus2 
Life   is sweet   in the belly of the beast 
       F# 
In the belly of the beast 
F#sus2        F#   F#sus2     F#    F#sus2    F#                             F#sus2 
And with her song  in your heart, it can never bring you down, (it can never bring you down) 
       F# 
It can never bring you down 
 
Final Chorus
                 D#m            A#m 
'Cause when she sings I hear a symphony 
          B                      F# 
And I'm swallowed in sound as it echoes through me 
     D#m                A#m 
I'm renewed, oh, how I feel alive! 
        B                          B 
Through winter's advancing, we'll stay young, go dancing 
Stay young, go dancing 
Stay young, go dancing (end on E chord)