Final answer:
In Haydn's Trumpet Concerto in E Flat Major, III, the instruments accompanying the solo trumpet include the violin and French horn. The Rondo theme, initially introduced by the ensemble, is then presented by the trumpet, and the tempo of the movement is Allegro. The coda is unique for featuring a solo trumpet cadenza.
Step-by-step explanation:
In Haydn's Trumpet Concerto in E Flat Major, III, in addition to the solo trumpet, you can hear other instruments like the violin and the French Horn. The clarinet and flute are not typically part of this movement's orchestration.
After the ensemble introduces the Rondo theme, it is then presented by the trumpet. The tempo of the movement is Allegro, which indicates a brisk and lively pace. Regarding the coda section, it is unique because it features a solo trumpet cadenza, which is a virtuosic solo passage where the trumpet player has the opportunity to display their skill.