Matches in DBpedia 2015-10 for { ?s ?p "An echea or sounding vase (literally echoer) is a pot, chamber or vessel that is similar in function to a modern-day bass trap. They were originally used in ancient Greek theaters to enhance the voices of performers by resonance. They were usually made of bronze, but could also be earthenware if necessary for economic reasons.Echea were placed with a "due regard to the laws and harmony of physics" according to the Roman writer Vitruvius."@en }
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- Echea comment "An echea or sounding vase (literally echoer) is a pot, chamber or vessel that is similar in function to a modern-day bass trap. They were originally used in ancient Greek theaters to enhance the voices of performers by resonance. They were usually made of bronze, but could also be earthenware if necessary for economic reasons.Echea were placed with a "due regard to the laws and harmony of physics" according to the Roman writer Vitruvius.".