It incorporates elements of biology, mathematics, and physics.
When you play a tone at 440Hz, you produce an A note. Doubling the frequency to 880Hz changes the note to an A one octave higher.
To our ears, this sounds very similar, just at a higher pitch. Certain ratios within this range sound more harmonious, such as the “perfect fifth” (3:2) and the “major third” (5:4).
undefined
Dividing the octave into 12 is not the only system (many folk music uses a 5-note octave), but since 12 is neatly divisible by 2, 3, 4, and 6, it creates a harmonious combination of notes. The corresponding ratios can be constructed easily.
This article addresses the question “Why are there 12 notes in an octave?” (asked by Noel Gibson of Bath).
If you have any questions, please email us at: questions@sciencefocus.comor send us a message Facebook, Xor Instagram Page (remember to include your name and location).
Check out our ultimate Interesting information More amazing science pages.
read more:
Source: www.sciencefocus.com
