100 words - Subconscious Lyrics Association (SLA)

Related to synchronicity is a theory postulated by my brother and myself, which I’ll call Subconscious Lyrics Association.
Say you’re in the zoo, admiring caged fauna. A song pops into your head, possibly one you haven’t heard for ages. You hum the intro. When you get to the lyrics, you realize that it’s Talking Heads’ “Animals”.
The SLA Theory claims that your brain subconsciously connects observed events to a song’s lyrics. It then brings the song’s music into your head and hey presto, the association is made.
Naturally, empirical research is required to verify this theory. Maybe it’s just coincidence.