Consonance and dissonance

thumb|right|upright=1.35|Barbershop quartets, such as this US Navy Band ensemble, sing four-part pieces, made up of a [[melody line (normally the lead) and three harmony parts. ]] In music, harmony is the concept of combining different sounds in order to create new, distinct musical ideas. Theories of harmony seek to describe or explain the effects created by distinct pitches or tones coinciding with one another; harmonic objects such as chords, textures and tonalities are identified, defined, and categorized in the development of these theories. Harmony is broadly understood to involve both a

term in acoustics

categorizations of simultaneous or successive sounds

in music theory, change from dissonance to consonance

Cambiata, or nota cambiata (Italian for changed note), has a number of different and related meanings in music. Generally it refers to a pattern in a homophonic or polyphonic (and usually contrapuntal) setting of a melody where a note is skipped from (typically by an interval of a third) in one direction (either going up or down in pitch) followed by the note skipped to, and then by motion in the opposite direction, and where either the note skipped from is distinguished as a dissonance or the note skipped to is distinguished as a non-harmonic or non-chordal tone. With regard to music pedagogi