Question

In order to raise the pitch of a note by an octave (by the same letter name, we must ______ its frequency (in Hertz).

a. Halve
b. Double
c. Quadruple
d. Triple

Answer 1

To raise the pitch of a note by an octave, the frequency must be doubled. In terms of musical notes, this means if a note has a frequency of 440 Hz, an octave higher would correspond to 880 Hz.

Step-by-step explanation:

In order to raise the pitch of a note by an octave, which means playing a note with the same letter name but higher in pitch, we must double its frequency (in Hertz). To expand on this, if a note has a frequency of 440 Hz, one octave higher would be 880 Hz, and this is due to the relationship between pitch and frequency where the frequency ratio of notes an octave apart is 2:1.