Nonchord Tones 1

Nonchord Tones 1

68 LearnMusicTheory.net High-Yield Music Theory, Vol. 1: Music Theory Fundamentals Section 5.5 N ONCHORD T ONES 1 Nonchord tones Nonchord tones are notes that do not fit the harmony. Instead, nonchord tones connect or decorate notes that are part of the chord. Many authors Consonance use the term consonance for a chord tone, and dissonance for a nonchord Dissonance tone. Nonchord tones are classified based on how they are approached (that is, the note before) and resolved (the note after). Passing tones Passing tones connect two chord tones by stepping up or down the scale (PT or P) (major or minor seconds) in the same direction. Several passing tones may occur in a row to connect chord tones a perfect fourth apart. descending passing tone ascending passing tones œ œ œ # œ˙ œ œ œ & ˙ & ˙ ˙ Neighbor tones Neighbor tones are approached and resolved by step in opposite directions (NT) (up-down or down-up). A neighbor group groups two neighbor tones Neighbor group together without returning to the chord tone between them. Neighbor (n gr) groups are also called double neighboring tones or changing tones. upper neighbor (UN) lower neighbor (UN) neighbor group (n gr) œ œ œ œ œ œ œ œ œ œ & ˙ & ˙ & ˙...or B-D ˙ ˙ ˙ Cambiata (c) The cambiata (sometimes also called changing tone) connected two consonances a 3rd apart (below, C and A) using a formula common in the 15th and 16th centuries: & œ œ œ œ œ œ œ Chapter 5: Introduction to Harmonic Analysis 69 Appoggiaturas Appoggiaturas are approached by leap and resolved by step to a chord (app) tone. Escape tones (or echappée) are approached by step and resolved by Escape tones leap to a chord tone. You can remember escape tones because to escape (esc) from a fire, you step to the (first-floor only) window, and leap out. appoggiatura (app) escape tone (esc) œ œ œ œ œ œ & ˙ & ˙ ˙ ˙ Appoggiaturas and escape tones are also incomplete neighbor tones because they are either approached or resolved by step, but not both. The direction of the leap and step may vary: up-down, down-up, up-up, or down-down. Retardations (ret) A retardation is a delayed step up; the retardation is metrically accented and (on a downbeat or strong beat; see 1.5). An anticipation “anticipates” a Anticipations note in the next harmony; anticipations are metrically unaccented. (ant) Retardations always resolve up by step; anticipations may step or leap. They may or may not use ties. retardation (ret) anticipation (by step) anticipation (by leap) œ & œ œ œ & œ œ œ & œ œ œ œ œ œ œ œ œ vii°6 I vii°6 I vii°6 I Pedal tones A pedal tone (or pedal point) starts as a chord tone, becomes a nonchord Pedal point tone as other voices change harmonies, then becomes a chord tone again when the other voices change harmonies again. Pedal tones are usually below other voices (like an organ pedal), but may be on top or even in the middle. From Bach, WTC, Fugue I in C, mm. 26-27 œ œ œœœ.œ œ ˙ c œ˙bœœ ≈ œnœœœœ œœœœ œ ˙ & œœ œœœ œ œ ≈ œ œnœœœœ œ. w ? c w œœœ w C is consonant C is dissonant C is consonant .

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