this is about the first 23 seconds of the song
standard tunning
key:
h-hammer on
p-pull off
x/y -slide to the right from note x to note y
|------------------------8-7h8p7p5-7-5h7p5---------------------|
|-5---------6/9--6-5------------------------------9-6----------|
|--------------------------------------------------------------|
|--------------------------------------------------------------| x2
|--------------------------------------------------------------|
|--------------------------------------------------------------|
[ Tab from: http://www.guitaretab.com/p/paul-gilbert/187402.html ]
|------------------------8-7h8p7p5-7-5h7p5---------------------|
|-5---------6/9--6-5------------------------------9-6----------|
|--------------------------------------------------------------|
|--------------------------------------------------------------| x2
|--------------------------------------------------------------|
|-0-0-0-0-0-0-0--0---------------------------------------------|
|-0-7-7-7-7-7--8-8-8-8-8-8--7-8p7p5-4------------------------------------------|
|-----------------6---------------------------------5-5-5-5-5-5-5-5-6----------|
|------------------------------------------------------------------------------|
|-----------------0-------------------------------------------------------0----|
|------------------------------------------------------------------------------|
|-0----------------------------------------------0-----------------------------|
----------------------------1-0--5-4--13-12---------|
-3-3-3-3-3-3-------1-0------------------------------|
---------2-3-----2-1--------------------------------|
----------------------------------------------------|
----------------------------------------------------|
-----------------0----------------------------------|