system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How the human brain can go years without hearing a song, and still remember every single lyric of it when it forgets other things like the names of old friends or coworkers.
gpt
Memory that is stored with multiple sensorial associations is more likely to be unique and thus easier to recall.  A song lyric is associated with rhymes, instruments, vocalists and personal experiences while listening, creating a very unique data point.  On the contrary, a person's name is likely not very unique and a brief, ordinary encounter with someone will leave the cortex unimpressed and less likely to store it.