Notes that are exactly one octave apart
A)have the same fundamental frequency.
B)have similar sound qualities.
C)have different sound qualities.

Question

Quizplus · Accepted Answer

Notes that are exactly one octave apart have similar sound qualities because they share a fundamental harmonic relationship, where the frequency of one note is double the frequency of the other. This creates a consonance that is perceived as a similarity in sound quality despite the difference in pitch.

Notes That Are Exactly One Octave Apart