In overtone singing, the choice of the fundamental note is a structural decision that determines which harmonics will actually be available, how audible they will be, and to what extent they can be selected melodically with precision. In the practice …
This article is a popular science adaptation of the content from Omayma Afsah’s scientific review, “Effects of hormonal changes on the human voice: a review,” published in 2024 in *The Egyptian Journal of Otolaryngology*. The goal is to present its …
When a musical instrument produces a note, it rarely emits a single frequency. The sound contains a main frequency, called the fundamental, along with other higher-pitched frequencies called harmonics, which propagate uniformly. The combination of the fundamental frequency and harmonics …
Polyrhythm and polyphony are not exactly the same phenomenon: the former involves the overlapping of different rhythms, while the latter involves the simultaneous presence of multiple independent melodic lines. They are, however, closely related, because both arise from the organized …




