Multiphonics is the process of blowing vigorously into a saxophone to produce a collection of notes.
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A saxophone comprises a clarinet-like mouthpiece and a conical metal tube with around 24 apertures that are controlled by cushioned keys. The tube was originally made of brass.
There are a handful of fingerings one can utilize to play what we call "multiphonics," or more than one note at once, on the saxophone, whereas it isn't possible to play a whole set of chords on the instrument. These work best as an odd-sounding impact rather than to play chord tones or traditional harmonies.
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b. perspective
<span>The Renaissance technique Raphael used in School of Athens is called perspective. It is a technique that includes an architectural perspective with a vanishing point set in the middle of the whole painting. In the specific case, the vanishing point is where the central figures of Plato and Aristotle are standing. The painting, which is an affresco, is located in Italy, inside of the Vatican Museum, and it was painted between 1509-1511.</span>
