Homer's Barbershop Quartet was created on 1993-09-30.
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A Barbershop quartet consists of 4 singers who sing a
cappella.
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4
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Same as the regular barbershop:bass, baritone, lead ,tenor,
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There are many places where one can find information about the
barbershop quartet. These places include, but are not limited to,
Wikipedia and their official webpage.