-------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
--------4--7--7--9--9--12--11--12--11--7--7--9--9------------------------
--------2--5--5--7--7--10---9--10--9---5--5--7--7------------------------
-------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
--------4--7--7--9--9--12--11--12--11--7--7--9--9------------------------
--------2--5--5--7--7--10---9--10--9---5--5--7--7------------------------
-------------------------------------------------------------------------------------
Composição de Geezer Butler/Tony Iommi/Ozzy Osbourne/Bill Ward