Bohlen-Pierce tuning, which divides and octave and a fifth — or, the tritave — challenges the concept of the octave, and removes its centrality from music. This week we listened exclusively to music that uses Bohlen-Pierce (BP) from a variety of styles.
![](https://i2.wp.com/composerjude.com/wp-content/uploads/2019/08/bp-spectra.jpg?fit=650%2C369&ssl=1)