In the past, I've edited the "Trivia" section of a few Cytus II songs to elaborate on its role in the story. For example, Jakarta PROGRESSION being the first song ever written by ROBO_Head.
I've been thinking about taking these pieces of information out of Trivia, and instead putting it in its own section, called "Story significance". Perhaps this section could be hidden in a spoiler tag and require clicking on it to "open" it and reveal its contents, since some of these could get pretty spoiler-y.
Any objections or comments?