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25.05.2026 New claim submitted for Backwards Stair Climbing, 1 Hour 09.05.2026 New claim submitted for Mental Calculation, Division 09.05.2026 New claim submitted for Mental Calculation, Square Roots Keywords: (e.g football beer mat)	Listed below are the verified claims for the record listed. Largest ensemble of baritone horns - Current world record 1. Largest ensemble of baritone horns consisted of 253 musicians from Italy, Austria and Germany who played two pieces of music together on 30 May 2015 at Latzfons, South Tyrol (Italy).     The Book of Alternative records - World records, record breakers and more!