Music Quote of the Day: Did you know that...

When we double or halve a frequency, we end up with a note that sounds remarkably similar to the one we started out with. This relationship, a frequency ratio of 2:1 or 1:2, is called the octave. It is so important that, in spite of the large differences that exist between musical cultures- between Indian, Balinese, European, Middle Eastern, Chinese, and so on- every culture we know of has the octave as the basis for its music, even if little else in common with other musical traditions.

p. 31 from the book This is Your Brain on Music by Daniel J. Levitin