Riff 1
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--4--4--7---4--4--7---4--4--7--5-4-2--|
-5--5------5--5------5--5-------------|
[ Tab from: http://www.guitaretab.com/l/los-lobos/100337.html ]
Riff 2
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--4--4-7----4--4-7---4--4-7--5-4-5----|
-5--5------5--5-----5--5--------------|
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...now then play it again till you get bored, oh and if any one gets the
rest of the song please finish and send. -Gomez