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Black Sabbath introduced darkness into metal
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Black Sabbath combined hard rock, blues, jazz, and classical music to create heavy metal
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Black Sabbath was the heaviest band ever when their debut album came out
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Black Sabbath unarguably created doom metal
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Black Sabbath invented Progressive Metal with the album Sabotage
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Black Sabbath created Christian Metal with the song After Forever
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Black Sabbath made Proto Thrash songs like Symptom of the Universe
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Most metal bands say Black Sabbath are an influence to their band
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Their imagery inspired many metal bands
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Black Sabbath introduced stoner lyrics to metal
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Each member of the original lineup inspired many metal musicians