Poliharmónia

Poliharmónia refers to the simultaneous sounding of more than two distinct pitches, a concept explored and expanded upon in music theory and composition. It goes beyond simple consonance or dissonance, involving the intentional juxtaposition of multiple harmonic structures or tonal centers within a single musical passage. Composers may achieve poliharmónia through various techniques, such as layering independent melodic lines, each with its own harmonic implications, or by superimposing chords derived from different keys.

The term is often associated with early 20th-century musical developments, where composers sought to break away from traditional tonal constraints and explore new sonic possibilities. While the concept can be found in earlier music in nascent forms, its deliberate and systematic application became more prominent during this period. Poliharmónia can create a rich, complex, and sometimes dissonant texture, adding depth and color to the musical fabric. Its effect can range from subtle harmonic richness to overt clashes of tonalities, depending on the composer's intent and the specific arrangement of pitches. Understanding poliharmónia is crucial for analyzing and appreciating many modern and contemporary musical works.