What features characterize 20th-century music?

The correct choice highlights the significant characteristics of 20th-century music, which was marked by a departure from traditional forms and an embrace of new ideas in composition and sound. One of the most notable features of this era was the use of atonality, which is the absence of a tonal center, allowing composers to explore dissonance and unconventional harmonic structures.

Experimentation became a hallmark of the century, with composers pushing the boundaries of what music could be, incorporating new techniques, techniques like chance music and minimalism, and various forms of media in their compositions. Additionally, the incorporation of electronic components revolutionized the way music was created and produced, paving the way for various genres that blend technology with artistic expression.

These aspects showcase the innovative spirit of 20th-century music, which sought to redefine music beyond established norms and engage listeners in new auditory experiences.