because of how your brain values them

The way to to calculate radius diameter and circumference is engraved in my head from the song my seventh grade teacher showed me

well yeah but I was never shown a song or found interest in that at all, and I readily had access to search engines so I naturally never grew to memorizing the formulas

I would also make the argument "heh who needs to know that stuff anyway, school sucks amirite!!!" but that one is incredibly stale

Song lyrics are easier to remember than school work because they combine rhyme, rhythm, and repetition, which act as powerful mnemonic devices. Music engages multiple brain areas, creates emotional connections, and is often processed as long-term procedural memory, whereas study material is usually drier, lacks emotional context, and requires more active effort to encode. (Google response)

Because we find substance in lyrics, not in formulas

Like bro who here remembers how to calculate f**king DENSITY!?

it has to do with the way memory works idk the specifics