/: slide
(): sometimes played

This riff is repeated the entire intro of the song:
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|----------------------------------------------(0-0-0)----------------------|
D|-----------------------------------------------5-5-5-----------------------|
A|--3-3-/5-7-5-7-------------3-3-/5-7-5-7------------------------------------|
E|----------------5-5-5/3-3----------------5-5-5-----------------------------|