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This work is called 'Hammers' Eight pin hammers of different sizes are mounted on an acrylic tube. The hammers are made to bounce away from the tube and fall back onto the tube by being hit by small solenoids. The solenoids make a clicking sound and the hammers hitting the acrylic make a slightly different sound almost immediately afterwards. The hammers are selected at random and there is a random time of between 1 and 17 seconds between hammers being activated. Occasionally, at random, all 8 are operated in sequence in rapid succession, which makes a clattering sound.
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