Just as an aside because this conversation is fun...

I've heard about musicians who aren't skilled in the ways of engineering sound, refer to the audible spectrum of sound (20 Hz - 20 kHz) as a rainbow, with red being the bass, violet being very high pitched stuff. I believe it was a member of the beatles (don't ask which member, I don't remember that much of the story) who asked a sound engineer back in the day to put more orange in the song.