Which of the following is NOT a way rows can be manipulated in 12-tone music?

In 12-tone music, rows—a specific series of twelve different pitches—can be manipulated through several established techniques. The methods include inversion, retrograde, and transposition.

Inversion involves flipping the row by reversing the direction of the intervals between notes, creating a mirrored version of the original melody. Retrograde is another technique where the row is played backward, reversing the order of the notes. Transposition shifts the entire row up or down in pitch, maintaining the original intervals but starting on a different tonal center.

“Double Diminution,” on the other hand, is not a standard manipulation technique recognized in 12-tone music. The concept of diminution typically refers to the division of longer notes into shorter notes, often associated with ornamentation, rather than manipulation of rows in the context of twelve-tone composition. Therefore, this choice does not fit within the framework of accepted techniques for row manipulation, making it the correct answer.