Final answer:
Haydn's Trumpet Concerto likely features a major key tonality, aligning with the classical period's use of structured harmonies and predominantly cheerful or majestic moods.
Step-by-step explanation:
When discussing the type of tonality heard in the example of Haydn's Trumpet Concerto, it is most likely that the work is in a major key, consistent with the classical period's emphasis on clear, structured harmonies and often cheerful or majestic moods.
Haydn's work would typically exhibit these characteristics, which are in contrast with the modal music of the Renaissance or the intense emotional contrasts of the Romantic era. Major and minor keys and their associated emotional implications became well-established during the Baroque period and were further solidified in the Classical era, where composers like Haydn worked.