A nonchord tone (NCTs), nonharmonic tone, or embellishing tone is a note in a piece of music that is not part of the implied chord within the harmonic framework. Similarly, a chord tone is a note that is a part of the functional chord (see: factor (chord)). Nonchord tones are most often discussed in the context of the common practice period, but can be used in analysis of other types of tonal music as well.
Chord and nonchord tones are defined by their membership in a chord: "The pitches which make up a chord are called chord-tones: any other pitches are called non-chord-tones." They are also defined by the time at which they sound: "Nonharmonic tones are pitches that sound along with a chord but are not chord pitches."
For example, if a piece of music implies a C Major chord, then notes CEG are members of that chord, while any other note played at that time is a nonchord tone. Such tones are most obvious in homophonic music but occur at least just as frequently in contrapuntal music.
Bass or Basses may refer to:
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In music theory, the bass note of a chord or sonority is the lowest note played or notated. If there are multiple voices it is the note played or notated in the lowest voice. (the note furthest in the bass) While the bass note is often the root or fundamental of the chord, it does not have to be, and sometimes one of the other pitches of the chord will be found in the bass. See: inversion (music).
In pre-tonal theory (Early music), root notes were not considered and thus the bass was the most defining note of a sonority. See: thoroughbass. In pandiatonic chords the bass often does not determine the chord, as is always the case with a nonharmonic bass.