Harmony is the result of polyphony (more than one note being played simultaneously).
Coordinate harmony follows direct (adjacent) relationships rather than indirect as in subordinate harmonies.
Harmony is the use and study of pitch simultaneity and chords, actual or implied, in music.
Please note that that is the most basic and distilled example of 4-part harmony.
Carl Dahlhaus (1990) distinguishes between coordinate and subordinate harmony.
Subordinate harmony is the hierarchical tonality or tonal harmony well known today, while coordinate harmony is the older Medieval music and Renaissance music tonalitй ancienne.
The word "harmony" comes from the Greek language, ??????? (harmonнa), meaning "a fastening or join."
The concept of harmony dates as far back as Pythagoras.
Some traditions of music performance, musical composition, and music theory have specific rules of harmony.
To put it simply, the combination of notes that make intervals creates harmony.
Very often, harmony is a result of counterpoint or polyphony, which are several melodic lines or motifs being played at once, although harmony may control the counterpoint.
Harmony becomes a state of order among the musical elements of a whole to become a pleasing unity.
When a singer vocalizes a melody and is accompanied by an instrument, the instrumental portion is thought of as the harmony or the combination of tones sounded at once under the melody.