Iron Maiden - Pilgrim Tabs

(Intro)
The Pilgrim (Intro)
A Matter Of Life And Death
Iron Maiden

This is my fist try for a tab and I haven't seen any other tab from this album yet 
(except track nr.7 which first came as a single.) so I hope that the first tab will be a good one. I 
think that this song has the best intro on the album.

e|-7-7-----------|--------7-8-7~-|-7-------------|-7-7-----------|
B|-----10-8-7----|--10-10--------|---10-8-7------|-----10-8-7----|
G|------------9~-|---------------|----------9~---|------------9~-|
D|---------------|---------------|---------------|---------------|
A|---------------|---------------|---------------|---------------|
E|---------------|---------------|---------------|---------------|
                 
***I have changed this part of the tab from: e|-------------7-|
I think it sounds better now***              B|--10-10-8-10---|
                                            

e|---------------|
B|-10-10-8-7-----|
G|-----------9---|
D|---------------|
A|---------------|
E|---------------|

This is played twice, but after the first time there is the additional...

e|---------------|
B|-8-7-----------|
G|-----9-7--9~---|
D|---------------|
A|---------------|
E|---------------|

...And then the rest of the song starts