A note is a sound produced by a mixture of several frequencies.
Here’s why:
A) Mixture of several frequencies:
This is the correct definition of a musical note. A note, like those played on a guitar or piano, is a complex sound made up of multiple frequencies, including a fundamental frequency and overtones.
B) Mixture of two frequencies only:
While some musical sounds might include only two frequencies, this is not the definition of a note in general.
C) Of a single frequency:
A sound with a single frequency is called a tone.
D) Always unpleasant to listen:
Notes can be pleasant or unpleasant depending on various factors like the combination of frequencies, the duration, and the cultural context.