1pm: 600 London schoolchildren perform a repertoire of songs inspired by the maritime history of the River Thames
2.30pm: Led by Roxane Smith and Michael Harper, a rousing 800 person concert comprising choirs from all over the UK will sing together to raise money and awareness for WaterAid.
4pm: A rousing sea shanty ensemble evoking times past on the wide-open seas.
5pm: All-women pop choir Lips presents a feel-good extravaganza with a repertoire that includes everything from 1950s girl-pop to garage and disco.
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