Delaney Davidson – Little Heart chords

Great musician from New Zealand. Would appreciate any help with this/suggestions. 
What I have so far. Not sure about Bm 

Capo 4 (?)
 G                 BmLittle heart don’t slow
 Em                  Am              im already here you know
G                               Bm                       Over the lake you see the wind blow
Em                             Am                        Through the trees through the snow

Winter comes around
A heart is slow the senses all shut down
Resistant in the coil
The tea cup waits as the water starts to boil

Live according to the season
In the home where I was born
Things they gotta have a reason
The sun don’t come before the dawn

Little man must go
Choke the business down the river thick and slow
Dirty meddling hand
Will drive the value down by the fall of land

See the head the head is floating
The body sits there all alone
Grandpa see the world is changing
Little boy is left alone

Mmmmmm aaaaaa