Len and Yvonne Arnold picked up OBEs for their services to gymnastics after recognition earlier this year for running a gym which even trained an Olympian.
Rags Martel has more.
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Members of the Royal Philharmonic recorded the recital at London's famous Abbey Road Studios on custom-made instruments.
The three-week trial is designed to speed-up the flow of passengers leaving Holborn station during the morning rush hour.
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