Vocabulary and Key Points Ch. 17 & 18 – Flashcards

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Triad
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Common chord type consisting of three pitches built on alternate tones of the scales. (Steps 1-3-5 or do-mi-sol)
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Tonic
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The first note of the scale or key, do.
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Dominant
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The fifth scale step, sol
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Subdominant
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Fourth scale step, fa
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Modulation
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The process of changing from one key to another
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Transposition
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Shifting a piece of music to a different pitch level.
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Octave
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the interval spanning eight notes of the scale.
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Half Steps
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smallest interval used in the Western system, the octave divides into twelve such intervals; on the piano, the distance between any two adjacent keys, whether black or white. Also semitone.
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Chromatic scale
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Melody or harmony built from many if not all twelve semitones of the octave. A chromatic scale consists of an ascending or descending sequence of semitones.
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Sharp
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musical symbol that indicates raising a pitch by a semitone.
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Flat
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musical symbol that indicates lowering a pitch by a semitone
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Whole step
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interval consisting of two half steps, or semitones
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Tonic
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the first note of the scale, or key, do. Also keytone.
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Tonality
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principal of organizing around a tonic, or home, pitch based on a major or minor scale.
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Key
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defines the relationship of tones with a common center or tonic. Also a lever on a keyboard or woodwind instrument
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Diatonic
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melody or harmony built from the seven tones of a major or minor scale. A diatonic scale encompasses patterns of seven whole tones and semitones.
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Pentatonic Scale
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Five-not pattern used in some African, Far Eastern, and Native American musics; can also be found in Western music as an example of exoticism.
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Tritonic
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Three-note scale pattern, used in the music of some sub-Saharan African cultures.
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Heptatonic Scale
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Seven-note scale; in non-Western musics, often fashioned from a different combination of intervals than major and minor scales.
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Microtones
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Musical interval smaller than a semitone, prevalent in some non-Western musics and in some twentieth-century art music.
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Inflecting Blue note
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Small alteration of the pitch by a microtonal interval.
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Ragas
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Melodic pattern used in music of India; prescribes pitches, patterns, ornamentation, and extramusical associations such as time of performance and emotional character.
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What is the interval span of an octave?
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An octave is the interval spanning eight notes of the scale.
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What is the octave divided into in Western music?
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In Western music the octave is divided into twelve half steps, the smallest interval used; two half steps make a whole step.
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What is the chromatic scale made up of?
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The chromatic scale is made up of those twelve half steps, while a diatonic scale is built on patterns of seven whole and half steps that form major and minor scales.
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What is a sharp?
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A sharp is a symbol that raises a pitch by half step; a flat lowers a tone by a half step.
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What are the other scale types?
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Other scale types used around the world include tritonic (three-note patterns) and heptatonic (seven-note patterns other than major and minor)
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What do some world cultures use?
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Some world cultures use microtones, which are intervals smaller than half steps; scales from other cultures for example Indian Ragas have extra musical associations.
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What is the tonic chord?
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The tonic chord, built on the first scale tone, is the home base to which active chords (dominant, on the V; subdominant, on IV) need to resolve.
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What can composers shift?
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Composers can shift the pitch level of an entire work (transposition), or change the center, or key, during a work (modulation).
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Composers can change the key, or modulate to do what?
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Composers change the key, or modulate, during a piece to create tension and drama.
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