Simplify the following text for a Grade 6 native English-speaking person.
Original: Both marches were played two days later at a Promenade Concert in the Queen 's Hall London , conducted by Henry Wood .
Simplified: Both marches were played two days later at a London Promenade Concert in the Queen 's Hall London , conducted by Henry Wood , with March No. 1 played second , and the audience '' ... rose and yelled . .