Why do some composers prefer to write in compound time?

There are several reasons why some composers prefer to write in compound time:

1. Variety and Expressiveness: Compound time signatures, such as 6/8 or 9/8, offer a different rhythmic feel compared to simple time signatures like 2/4 or 4/4. They add variety and help composers create diverse and interesting rhythmic patterns, enhancing the expressiveness and character of the music.

2. Dance-like Feel: Compound time signatures are often associated with dance rhythms, as they naturally lend themselves to a flowing and triple meter feel. Composers may choose compound time to evoke a lively, lilting, or dance-like quality in their music.

3. Flexible Subdivisions: Compound time signatures allow for flexible subdivisions of beats. For example, in 6/8 time, each beat can be divided into groups of two or three eighth notes, providing composers with more rhythmic possibilities and allowing them to create complex and intricate rhythmic patterns.

4. Compatibility with Lyrics: Many composers prefer compound time signatures when writing music with lyrics, as they align well with the natural stresses and accents of words. The triple subdivision of beats in compound time often matches the phrasing and emphasis of lyrics effectively.

5. Cultural and Historical Traditions: Certain musical genres or cultures have a long-standing tradition of using compound time signatures. For instance, folk music, Celtic music, or music from Latin American countries often incorporate compound time as an integral part of their musical language. Composers working within these traditions may choose to use compound time signatures to stay true to the genre's conventions or to evoke a specific cultural context.

Of course, these reasons are not exclusive, and composers may choose to write in compound time for personal artistic preferences, experimentation, or simply to challenge themselves creatively. Ultimately, the choice of time signature depends on the composer's intentions, desired rhythmic feel, and the overall aesthetic of the music.