How Do Intro

Play this several times, it's mixed in through the whole song so I guess you could say
it's not just the intro, I just can't figure the rest of it out.
|------0-------0------------------------------------------------------------| 
|----------3----------0--------0-------0------------------------------------| 
|-----------------3--------3--------3--------0------------------------------| 
|--2--------------------------------------------------2---------------------| 
|---------------------------------------------------------------------------| 
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