A

I

II

III

IV

V

VI

1-я

2-я

3

3-я

2

4-я

1

5-я

6-я

E

I

II

III

IV

V

VI

1-я

2-я

3-я

1

4-я

3

5-я

2

6-я

A5

I

II

III

IV

V

VI

1-я

4

2-я

3

3-я

1

4-я

5-я

6-я

B5

I

II

III

IV

V

VI

1-я

1

2-я

3-я

4-я

5-я

6-я

C5

I

II

III

IV

V

VI

1-я

3

2-я

1

3-я

4-я

5-я

6-я

F#m

I

II

III

IV

V

VI

1-я

1

2-я

1

3-я

1

4-я

4

5-я

3

6-я

1

C9

IV

V

VI

VII

VIII

IX

1-я

2

2-я

1

3-я

1

4-я

1

5-я

1

6-я

4

e:----0------------|
The first A  in the song is a regular A :  B:----2------------|
                                         G:----2------------|
                                         D:----2------------|
                                         A:----0------------|
                                         E:-----------------|

And the E  is a regular E : e:----0------------|
                          B:----0------------|
                          G:----1------------|
                          D:----2------------|
                          A:----2------------|
                          E:----0------------|
But the crescendo in the middle, ("on we sweep, with threshing
oar....) is actually A5 - B5 - C5 :
    A5                  B5             C5
e:-------------------------------------------------|
B:-------------------------------------------------|
G:-------------------------------------------------|
D:---7------------------9--------------10----------|
A:---7------------------9--------------10----------|
E:---5------------------7--------------8-----------|
If you listen carefully, A5  is played 16 times quickly, B5  is
also played 16 times quickly, C5  is played 16 times, plus an extra 9.
Don't forget to stop short on the 9th time!
F#m  is never played in the song, the beginning part is given as
N.C. Let me just do the song:
Riff 1
e:---------------------------------------------------------|
B:---------------------------------------------------------|
G:---------------------------------------------------------|
D:---------4-------------4-------------4------------4------|
A:---------------------------------------------------------|
E:--2--2-2---2--2-2--2-2---2--2-2--2-2---2--2-2-2-2---2-2--|
Play (Riff 1) 4 times while someone goes "Ahhhhhhh......"
A   E
We come from the land of the ice and snow, from the midnight sun
           E     A
where the hot springs blow;
Play (Riff 1) 3 times with the lyrics:
The hammer of the gods .. will drive our ships to new lands,

                                       A
to fight the horde, singing and crying:
E                     E  A
Valhalla, I am coming!
Play (Riff 1) once, then:
A5
On we sweep -
B5
with threshing oar -
C5
our only goal will be the western shore.
Then repeat everything all over again, this time with different
lyrics after "We come from the land of the ice and snow...." part:
How soft your fields so green, can whisper tales of gore,
of how we calmed the tides of war. We are your overlords…
After the last C5  part:
Play (Riff 1) 3 times with the lyrics:
So now you'd better stop - and rebuild all your ruins,
for peace and trust can win the day despite all your losing.
As you hear the word "losing", replace the last part of (Riff 1)
with:
    C9
e:-------------------|
B:---3---------------|
G:---3---------------|
D:---2---------------|
A:---3---------------|
E:-------------------|
Then play the outro:
Repeat this 3 times:
e:-------------------------------------------------------|
B:---------------------------------------------------3---|
G:o--------------------------------------------------3--o|
D:o-------4-------------4-------------4--------------2--o|
A:---------------------------------------------------3---|
E:-2--2-2---2--2-2--2-2---2--2-2--2-2---2--2-2--2-2------|
Repeat this 3 times:
e:--------------------------|-----------------------------|
B:-----------------------3--|------------------------3----|
G:o----------------------3--|------------------------3---o|
D:o-------4--------------2--|--------4---------------2---o|
A:-----------------------3--|------------------------3----|
E:-2--2-2---2--2-2--2-2-----|--2--2-2---2--2-2--2-2-------|
Then this last part:
e:--------------------------|----------------------------|
B:-----------------------3--|----------------------------|
G:-----------------------3--|----------------------------|
D:--------4--------------2--|--------4-------------------|
A:-----------------------3--|----------------------------|
E:-2--2-2---2--2-2--2-2-----|-2--2-2---2--2-2------------|