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Tonal tube air flow, some whisps of air from swinging, long decay (3).
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Tonal tube air flow, some whisps of air from swinging, long decay (2).
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0:07
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Tonal tube air flow, some whisps of air from swinging, long decay (1).
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0:13
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Small rock sliding down pvc pipe, scratching and tonal hum from slide.
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