Standard E (EADGBe)
Capo on 2nd fret
Figure the strumming out by listening to the song
VERSE
Em                       G                         C
       What a shame we all became, such fragile broken things,
              Asus2                         
A memory remains, just a tiny spark.
Em                     G                      C
       I give it all my oxygen, so let the flames begin,
                  Asus2...
So let the flames begin. 
PRE-CHORUS
...Asus2  C/Dsus4
Ohhhh Glory.... Ohh Glory! 
CHORUS
Em                       G
This is, how we'll dance when,
                 C
when they try to take us down,
Asus2                          Em...
This is what we'll be, ohh glory.
VERSE
...Em                    G
Somewhere weaknesses are strengths, 
                           C
And I'll die searching for it,
                     Asus2
I can't let myself regret, such selfishness.
Em                            G                      C
       My pain I know the trouble caused, no matter how long,
                       Asus2...
I believe that there's hope, 
PRE-CHORUS
...Asus2              C/Dsus4
buried beneath it all aaaaaaaaand,
https://www.coveralia.com/acordes/let-the-flames-begin--live-at-red-rocks--paramore.php
                      C/Dsus4...
hiding beneath it all aaaaaaaaand,
...Dsus4
growing beneath it all and...
CHORUS
Em                       G
This is, how we'll dance when,
                 C
when they try to take us down,
Asus2
This is how we'll sing out...
Em                       G
This is, how we'll stand when,
          C
when they burn our houses down,
Asus2                          Em...
This is what we'll be, ohh glory.
BRIDGE
...Em G C Asus2
Em            G              C          Asus2
Reaching as I sink down into life.
Em            G              C          Asus2
Reaching as I sink down into life.
FINAL CHORUS
Em                       G
This is, how we'll dance when,
                 C
when they try to take us down,
Asus2
This is how we'll sing out!
Em                       G
This is, how we'll stand when,
          C
when they burn our houses down,
Asus2                          Em (once)
This is what we'll be, ohh glory...