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tritone notes
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this is a special tritone keyboard. playing one tone also plays a second tone exactly one half octave across the keyboard.
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try pressing a key. does the second note sound higher or lower in pitch?
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the notes on this keyboard are comprised of the same six note cords as described for the
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discrete
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keyboard. if played in a row, these notes can easily be judged as sounding higher or lower. if an oposing pair of these notes (tritones) is played, the second note could sound higher to one person but lower to another person. this is because an individual will assign relative pitch to tones based upon the tonal range of the listener's native language and dialect.
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try this keyboard with a friend and compare your perceptions. both of you will hear the same set of tones, but each could perceive the opposite change of pitch. neither person would be wrong.
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next!
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