Scientific pitch notation creates a linear pitch space in which an octave spans 12 semitones, where each semitone is the distance between adjacent keys of the piano keyboard. Distance in this space corresponds to musical pitch distance in an equal-tempered scale; 2 semitones being a whole step, 1 semitone being a half step. An equal-tempered semitone can also be subdivided further into 100 cents. Each cent is semitone or octave. This measure of pitch allows the expression of "microtones" not found on standard piano keyboards. The notation is sometimes used in the context of meantone temperament, and does not always assume equal temperament
Octave Chanute Octave Chanute Octave Chanute (February 18, 1832, Paris – November 23, 1910, Chicago, Illinois) was an American civil engineer and aviation pioneer, born in France. He provided many budding enthusiasts, including the Wright brothers, with help and advice, and helped to publicize their flying experiments. At his death he was hailed as the father of aviation and the heavier-than-air flying machine. Octave Chanute was the son of Elise and Joseph Chanut, professor at the Collège de France. He emigrated with his father to the United States of America in 1838, when the former was named Vice-President at Jefferson College in