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This resulted in a surprising speak back on the part of the computer, which often then led to a spontaneous counter-reaction from the human performer. It was playful, unpredictable moments like this that gave love. abz its feel of liveness. Giving the last word to a synthetic voice seemed like the only way to go. If we struggled with some aspect of the ending, it was choosing which one of the many synthetic voices would be the most natural choice.