W. A. Mozart¡¥s compositions for clarinet played a significant role in the music history. Many scholars took their attention to Concerto in A major for Clarinet and Orchestra. However, the importance of Clarinet Quintet for Clarinet and String Quartet is unneglectable. According to the literature, the development of clarinet in the musical history is no earlier than the seventeenth century. Clarinet had a variety of sizes and tonalities in the beginning of development. Mozart composed lots of brilliant compositions for the combination with the clarinet in A. A. Stadler, a clarinetist, had excellent skill in playing clarinet. He cooperated with T. Lotz, an instrumental maker, extended the compass of basset clarinet lower to C. Inspired by Stadler and the invented instrument, Mozart wrote Clarinet Quintet, K. V. 581 and Clarinet Concerto, K. V. 622 for the basset clarinet. Mozart¡¦s Clarinet Quintet, K. V. 581 is undeniably important to the history of chamber music. Clarinet Quintet, K. V. 581 is composed in four movements. Harmony, form, texture, idiom and expression in every movement were discussed in Chapter3. The setting of clarinet and string quartet was also an innovation for the chamber music in his time. This setting of Clarinet Quintet became one of the standard settings which several composers tried to compose music for. Among the works, J. Brahms¡¦ Clarinet Quintet, op. 115 and M. Reger¡¦s Clarinet Quintet, op. 146 have gained the same respect as Mozart¡¦s Clarinet Quintet, K. V. 581. These works have several similarities. For example, they were all created in one or two years before the composers¡¦ death, and the inspiration for creating the music all came from the cooperation with the outstanding performers ¡Ketc. To sum up, Mozart¡¦s Clarinet Quintet, K. V. 581 is important and influential to the history of chamber music.

No description available.

Max Reger was a prolific composer on the threshold of modernism. The style of his extensive musical output was polarizing among his contemporaries. A criticism of Reger's music is its complex and dense musical structure. Despite writing tonal music, Reger often pushes the boundaries of tonality so far that all sense of formal organization is seemingly imperceptible. In this dissertation, I offer what I observed to be a new way of discerning Reger's motivic relationships and formal structures within and between movements. There are three primary tools and methods I incorporated to make these observations: Schoenberg's developing variation; melodic contour analysis as discussed by Elizabeth West-Marvin and Diana Deutsch; and Janet Schmalfeldt's motivic cyclicism stemming from internal themes. In this dissertation I examine five different musical works by Reger: D minor Piano Quartet, Clarinet Quintet, Piano Concerto, String Quartet, op. 121 and E minor Piano Trio, op. 102. My analysis shows how Reger relies on melodic contours of his motives to connect musical moments across entire movements and entire works with multiple movements. These motives are developed and often mark structurally significant moments providing the organization often perceived as missing in Reger's music.