Mozart, Haydn, Beethoven, and Mahler are composers known for their consistent use of timpani in their compositions. Mozart and Haydn incorporated timpani prominently in their symphonies, while Beethoven and Mahler used it innovatively in their orchestral works. Thus, these two pairs of composers illustrate the significant role of timpani in their music. ;
The composers who consistently used timpani in their compositions include Mozart and Haydn, as well as Beethoven and Mahler. Each of these composers utilized timpani to enhance the orchestral texture in their works, contributing to the overall sound and emotional impact. Therefore, the chosen options are A and B.
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