Standard tuning. The intro goes something like this:
e|------------------------|
B|------------------------|
G|------------------------|
D|------------------------|
A|------------------------|
E|---0---1/2----2/5-----0-|
The melody goes like this
e|---------------------------9-9---7--9----12---9--7--9--------------|
B|-5-5---7---9---5---7---9-------------------------------------------|
G|-------------------------------------------------------------------|
D|-------------------------------------------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|
[ Tab from: http://www.guitaretab.com/m/mercy-arms/181931.html ]
e|--------------7-----7-------------------7--------------------------|
B|-5---7---9-------9------9---5---7---9-------9---7---5--------------|
G|-------------------------------------------------------------------|
D|-------------------------------------------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|
e|---------------------------9-9---7--9----12---9--7--9--------------|
B|---5---7---9---5---7---9-------------------------------------------|
G|-------------------------------------------------------------------|
D|-------------------------------------------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|
e|--------------12-11---------12-11----------12-11-------------------|
B|---12---9------------12-9----------12--9----------12---9---7---5---|
G|-------------------------------------------------------------------|
D|-------------------------------------------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|
little instrumental solo, follows same melody as most of the song but above the twelfth fret.
e|----12--14---16--------12--14--16--19--|
B|---------------------------------------|
