I can't tell if the intro is bass or guitar but it sounds good with the bass. 

G|-5-5--5-5-5--5-------------------------------------------|
D|---------------7-7--7------------------------------------|x9
A|----------------------7-7--7-8-8--8-8-8--8-8-8--8-8-8--8-|
E|---------------------------------------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|-------------------------------------------|
D|---3------3-------7------7------5------5---|
A|-3---1--3---1---7---5--7---5--5---3--5---3-|
E|--------------3----------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|------------------------------------------|
D|---3------3------7------7------5------5---|
A|-3---1--3---1--7---5--7---5--5---3--5---3-|
E|------------------------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|------------------------------------------|
D|---3------3------7------7------5------5---|
A|-3---1--3---1--7---5--7---5--5---3--5---3-|
E|------------------------------------------|

G|-5-5--5-5-5--5-------------------------------------------|
D|---------------7-7--7------------------------------------|x4
A|----------------------7-7--7-8-8--8-8-8--8-8-8--8-8-8--8-|
E|---------------------------------------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|-------------------------------------------|
D|---3------3-------7------7------5------5---|
A|-3---1--3---1---7---5--7---5--5---3--5---3-|
E|--------------3----------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|------------------------------------------|
D|---3------3------7------7------5------5---|
A|-3---1--3---1--7---5--7---5--5---3--5---3-|
E|------------------------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|------------------------------------------|
D|---3------3------7------7------5------5---|
A|-3---1--3---1--7---5--7---5--5---3--5---3-|
E|------------------------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|------------------------------------------|
D|---3------3------7------7------5------5---|
A|-3---1--3---1--7---5--7---5--5---3--5---3-|
E|------------------------------------------|

G|-------------------------------------------------------------------------|
D|-----7------7------7------7-------5------5------5------5------3------3---|
A|-5-7---5--7---5--7---5--7---5---5---3--5---3--5---3--5---3--3---1--3---1-|
E|------------------------------5------------------------------------------|

G|------------------------------------------|
D|---3------3------7------7------5------5---|
A|-3---1--3---1--7---5--7---5--5---3--5---3-|
E|------------------------------------------|

G|-5-5--5-5-5--5-5-5--5-5-5-|
D|--------------------------|
A|--------------------------|
E|--------------------------|