Final answer:
The answer is True. Classical divertimento and serenade were light music genres designed for social events, reflecting the tastes of the upper class and often featuring structured melodies suitable for casual listening.
Step-by-step explanation:
The statement that the Classical divertimento and serenade were light genres intended for social functions is indeed True. These forms of music were composed during the Classical period and were typically used to entertain guests at social gatherings such as parties and outdoor events. Unlike Romantic music, which often catered to larger public concerts and the growing middle class, Classical music was mainly composed with the tastes and interests of the upper-class audiences in mind. Melodies and harmonies were designed to be structured and easily digestible, hence suiting the atmosphere of social engagement.
Dance music, in particular, was a significant part of instrumental genres during this period, often being improvised around familiar themes. Entertainment in the form of theater, vaudeville, and other performance arts were also popular among different social classes, shaping the cultural landscape of the time.