Pieces Lyrics

i just tried to tab 'pieces' and this is my result so far...
beginning: fmaj7, Am, C, G (repeat throughout)
chorus: fmaj7, Am, fmaj7, Am
this is how i grab them:
fmaj7:
Am:
C:
G:
the strumming pattern for fmaj7, Am and C is:
dddddudu
and for the G:
dddduddd
for the chorus i just change constantly between fmaj7 and Am :)