A serenade is a musical composition that's light in mood! Typically, these are sung by a male to his lover outside, and are written for a small ensemble of musicians. Mozart, among other famous musicians, also wrote serenades that helped the genre gain popularity.
What exactly is the background? Like what are you learning about specifically. I might know the answer, but I need to know what the background information is first.
His new instrument that he introduced were the Trombones.