What is the primary characteristic of Bitonality in music?

The primary characteristic of Bitonality in music is the use of two different keys simultaneously. This technique creates a unique harmonic texture and can evoke rich, complex sound landscapes. In bitonality, each hand may play in a different key or a specific section of the composition might shift between two tonal centers, allowing for the simultaneous exploration of contrasting harmonic relationships.

This distinct characteristic adds depth to the music, as it juxtaposes two tonalities that may interact in various ways, such as creating tension or blend. The resultant harmonies can often challenge traditional tonal structures, leading to innovative and modern soundscapes. Understanding bitonality is essential for grasping the evolution of contemporary music styles and their harmonic language.