G Major

In this world, serenade was originally a music genre performed for expressing love or affection, which was considered a suitable kind of music piece for the evening. As there were many nobles who were fond of chasing different music trends, the style of serenade also changed over time, and was played more and more often over evening parties.

In Aalto, the City of Psalm, serenade was never really mainstream, instead, symphony and concerto were more popular as they were always regarded as "more solemn and elegant".

When they were talking about piano fingerings, Silvia smiled to her teacher and said, "I’ve seen Mr. Julian’s serenade in your office before, and indeed it’s very suitable for playing on evening parties."

Christopher immediately understood the intention of her words. He shook his head and smiled.