Unlocking the Secrets of Bordun: A Guide to Medieval Music's Rhythmic Foundation

Bordun (also spelled as bourdun or burdon) is a term used in medieval music to describe a repetitive bass line or drone that accompanies a melody. It is typically played on a double bass or a large stringed instrument, and is often used to provide a rhythmic foundation for the melody.

The bordun is an important element of the polyphonic music of the Middle Ages, and was commonly used in religious chant as well as in secular songs and instrumental pieces. It is characterized by a steady, pulsing rhythm that provides a sense of continuity and stability, while the melody above it changes and evolves.

In modern times, the term "bordun" has been adopted by some musicians and composers to describe a repetitive bass line or drone that is used to create a sense of tension and release in music. It is often used in experimental and avant-garde music, as well as in electronic and ambient music.