knowing even a little bit of music theory/patterns makes ddlc a much more complex story.
not many fans pay attention to monika's piano, which I want to reference here as being key to the story as monika herself.
she is represented by it. it takes a lot of practice to hone, it can make a complete song without any other instruments, and it is considered a "boring" instrument because you can't really move around with it/change any presets/modify it like any other instruments.
just like monika herself. she wants to be the only one in the game, she is powerful enough to outlast the game even with no one else to support it, and she is pushed to the side in-game rules due to being the "boring" exposition fodder of the story.
Monika also seems to associate too much noise with a negative connotation. As we read in her poems, she mentions auditory sensation as an overstimulation factor, as what really pushed her off the edge into breaking her digital world to get rid of it.
That's why "Just Monika" is white noise, that's why gltiches/sudden sound effects play in relation to the other girl's spiraling lives, that's why an electric piano plays during Yuri's death. Because Monika is (for lack of better term) the piano.
She didn't want her old live's work to go to waste.
