The elderly couple are in a world of their own, dancing cheek-to-cheek to music only they can hear; the headphones they're wearing make the soundscore a secret.

Their memories, however, are more of an open book. As they dance, film footage and voiceovers evoke the heady ballroom days of yesteryear when Glasgow was the place for slow-slow-quick-quick-slow action and Cumbernauld – where the participants in this Tricky Hat project all live – was just a sketch on a planner's drawing board.

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