How did the difference between consonant and dissonant chords change in twentieth century music?

In twentieth century music, composers began to experiment more with dissonant chords, using them to create new harmonic textures and colors. This led to a blurring of the distinction between consonant and dissonant chords, with many compositions featuring a more ambiguous and varied approach to harmony. This exploration of dissonance became a key element of modern and contemporary music.