| Except, of course, that calliopes are intimately associated with riverboats, and New Orleans was once the mother of all riverboat ports. |
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| Riverboats once used calliopes to advertise, and the one on the Natchez works in a similar way, she said. |
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| The first calliopes were operated by a keyboard connected to cables that physically opened the valves, and required a huge amount of pressure on the keys. |
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| Calliopes advises its teams to limit their use of paper, to select public over private transport and to use local products. |
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