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------------0-2-----0-2---------
--------0-2-----0-2-------------
--0-0-0-------------------------
faz isso 4X
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-0-0-0-0-0------------0-0-------
----------2-2-2--0-0-0----0-2-0-
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-0-0-0-0-0------------0-0-------
----------2-2-2--0-0-0----0-2-0-
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Composição de Geezer Butler/Tony Iommi/Ozzy Osbourne/Bill Ward
