E|-17-13-12----13--------13-12----13-------13-12----13--------13-12---13--------13-12-------|
B|----------------------15--------------------15-------------------15-------------------15--|
G|------------------------------------------------------------------------------------------|
D|------------------------------------------------------------------------------------------|
A|------------------------------------------------------------------------------------------|
E|------------------------------------------------------------------------------------------|

Notice the grouping of the notes - they are pull-offs - listen to the song and the technique is obvious
Play the above a few times and then down a string for the key change:

E|------------------------------------------------------------------------------------------|
B|-17-13-12----13--------13-12----13-------13-12----13--------13-12---13--------13-12-------|
G|----------------------14--------------------14-------------------14-------------------14--|
D|------------------------------------------------------------------------------------------|
A|------------------------------------------------------------------------------------------|
E|------------------------------------------------------------------------------------------|