The occasion is the 3-day state visit of King Charles III. and Queen Consort Camilla of the United Kingdom of Great Britain and Northern Ireland in Germany.
The video shows the setting up of the post of honor and the trellis of guns at Bellevue Palace to welcome guests to the state banquet on the first evening of King Charles III's state visit. and Queen Consort Camilla. In addition, all the pieces of music and a large number of the guests can be seen. The video ends with the Bentley pulling up with the royal couple to the sounds of the March from the time of Frederick the Great (composed around 1700) and the parade of the trellis of guns. The staff music corps plays under the direction of Lieutenant Colonel Reinhard Kiauka.

Copyright claims occasionally have the benefit of communicating the title of the piece of music including the time stamp. The following pieces were claimed:

6:34 Cheers, Opus 70
10:39 Viribus Unitis
14:41 The Koburg March
17:08 Those Magnificent Men in Their Flying Machines
20:51 High Heidecksburg March
25:36 March of the Medici
30:46 York March
33:49 March around 1700 - March of Frederick the Great