Elvis Costello and the Pixies canceled performances, as did the British dance band Klaxon and the Gorillaz Sound System.

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The music adapts to the situation here, though the continually urgent klaxon in the background gets in the way.

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Mr Jones also worries that international businesses will look at Wales, and the rest of the UK, and sound the 'uncertainty' klaxon before swiftly locating somewhere else that's firmly inside in the EU and staying there - like Ireland.

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