Four Octave Range Saxophone Tone Top
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Tone variator - German psychologist William Stern invented the tone variator in 1897 to study human sensitivity to changes in pitch, going beyond the traditional psychophysical research of studying the sensitivity to differences in discrete tones. The instrument consists of an adjustable brass resonator, which is supplied with a constant flow of air across the opening at the top. Turning a graduated cam on the front of the apparatus raises or lowers a piston in the bottom of the resonator, changing the volume of its interior, thus altering the sounded pitch over a continuous range.
Octavin - The Octavin is a woodwind instrument with a conical bore and a single reed. As such it resembles a saxophone, and its range is similar to that of a soprano saxophone, but the octavin differs in three respects: first, its conical bore has a smaller taper than that of a saxophone; second, its body is made of wood, rather than metal; third, its usual ...
Five-octave vocal range - The label "five-octave vocal range" is a slight misnomer.
Middle C - In Western music, the expression "middle C" refers to the note "C" or "Do" located between the staves of the grand staff, quoted as C4 in note-octave notation (also known as scientific pitch notation). It also tends to be to the middle of a keyboard, and it is near the top of the male vocal range and the bottom of the female vocal range.
