The picking is quite syncopated...

Tuning: Standard

Chords: Am, C, G

 Intro
   Am
e|-------------------------------------|
B|---------1-----------------1---------|
G|-----2---------2-----2---------2-----|
D|-------2-----2---------2-----2-------|
A|-0---------------0-------------------|
E|-------------------------------------| x 2

 Verses
   Am
e|-------------------------------------|
B|---------1-----------------1---------|
G|-----2---------2-----2---------2-----|
D|-------2-----2---------2-----2-------|
A|-0---------------0-------------------|
E|-------------------------------------|
       Red         lips

   G
e|-------------------------------------|
B|---------0-----------------0---------|
G|-----0---------0-----0---------0-----|
D|-------0-----0---------0-----0-------|
A|-2---------------2-------------------|
E|-------------------------------------|
       Red         evening

Repeat those chords over the verses, then play the intro once before each chorus.

 Choruses

   C               Am
e|-------------------------------------|
B|---------1-----------------1---------|
G|-----0---------0-----2---------2-----|
D|-------2-----2---------2-----2-------|
A|-3---------------0-------------------|
E|-------------------------------------|

       And all the angels (all the angels)

(repeat until...)

   C               G               Am
e|-----------------------------------------------------|
B|---------1-----------------0-------------1-----------|
G|-----0---------0-----0---------0-----2---------2-----|
D|-------2-----2---------0-----0---------2-----2-------|
A|-3---------------2---------------0-------------------|
E|-----------------------------------------------------|

       And all the angels came gently flocking down

Middle eight has the same chord pattern as the chorus.

End on an Am chord or:

   Am
e|---------------------|
B|---------1-----------|
G|-----2---------2-----|
D|-------2-----2-------|
A|-0---------------0---|
E|---------------------|
letting the last open A string ring out

Lyrics:

Red was the colour of her lips that morning.
Red was the sky the evening before.
Red were the leaves that fell through autumn.
Red was the colour that she always wore.
She ran through the forest floor.

And all the angels
And all the angels
And all the angels came gently flocking down.

Red were her cheeks from the bracing wind.
Red was the hood that she pulled up around.
Red was the door on her grandmother's cottage
She knocked once, then she knocked three times more.

And all the angels
And all the angels
And all the angels came gently flocking in.

And then she saw the wolf dressed in her grandmother's clothes.
She thought that she'd heard the story before,
And she knew how the ending goes.
So she said to the wolf 'Grandma, you're looking down'
She wrapped her arms around him
And the love nearly spun him round.
The love just broke him down.

And all the angels
And all the angels
And all the angels came gently flocking round.

Red was the colour of her lips that morning.
Red was the sky the evening before.
Red were the leaves that fell through autumn.
Red was the colour that she always wore.
She ran through the forest floor.

And all the angels
And all the angels
And all the angels gently flew back up again.