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Atonal or 21st century music.
Music written before the 20th century
atonal
Atonal music
It means the piece is not in a key.
Atonal music.
music that has no central key and has a harsh non-harmonious tone
Atonal.
It means the piece is not in a key.
Classical and Arabic music.tone-row______________The scale used for tone rows is called the dodecaphonic or chromatic scale. "Do deca" is two and ten, meaning that the scale is made up of all twelve tones in the standard western musics. Arabic music makes use of notes that are outside of the dodecaphonic scale. Tone rows are commonly used in the composition of what is called atonal music. Actually, it is not atonal, but dodecatonal. Atonal music is harmonically atonal, since there is no relationship to a tonic, or key in the music.
Please can you explain what you mean. Are you asking who are the most popular composers with concert audiences? The most popular performers? What length of concert audiences prefer? What genres of music? Or ... ? And which country or countries do you have in mind?
Arnold Schoenberg A+