The First Overtone of an a Is Just Another a a Octave Higher

The first overtons of any note present us with the very important musical intervals we have already learned. The octave is already audible in the original notesothe octavethis note, is already occurring inside thisif look what's going on when the string divides itself into three equal vibrating parts. Within a single note, we find octaves and perfect fifths, we find intervals. Yet as we have seen, it is the relationship between notes intervals which give us musical experience,. not single notes in themselves.