Lately I've been having songs randomly spring out of my head out nowhere while I'm sitting in the kitchen listening to the TV. I'm pretty sure it has something to do with the fact that I've had my music playing in a nearby room every time this has happened.
I can't really explain it, but I've just been sitting there, eating my breakfast/lunch/dinner and listening to the news/football game/car commercial/sound of my parents/sister complaining when suddenly a short soundbyte of vocal melody and maybe a bass note or a root note of a chord floats into the room over the sound of the chatter that I have tuned out. Somehow my brain takes that note asnd says "What if I went to this note, over this chord. This can develop into a semi-complete song in my head with hardly any effort, and that sounds nothing like what the actually song I heard. Unfortunately I'm not usually in a position to run and get my guitar and write the song, but its still pretty cool.
Does anyone know why this might happen?
My theory is that my brain, which until this point has not been paying any attention to the music, does not know what beat the song is on and therefore automatically assumes that this is the first beat of a measure. Thus it cannot recognize what its hearing. This combined with the fact that I'm hearing one or two notes, hardly enough enough to identify what key the song is in gives my brain a lot of musical freedom. It then extrapolates so that the song emphasizes that beat.
Regardless, could be an interesting songwriting approach. Playing a brief clip of a song that isn't the first beat while you're watching tv so that you only hear one or two notes and then writing as if what you heard was beat one.