With the founding of the Paris Conservatory in 1795, a diversity of instructional methods for the teaching of harmony were used. Each theory instructor insisted upon using his own system; some relied heavily upon the theories of Rameau, while others used ideas based on eighteenth century German or Italian theorists. The Conservatory administration, realizing the need to unify theoretical instruction into a single method, formed a committee to evaluate the different harmonic systems available. After considering several treatises, including the theories of Rameau, the committee chose the Traité d'harmonie of Catel as the work best suited for their purposes. This investigation deals with Catel's synthesis of various theoretical principles, concentrating on his concise, often simplistic approach to harmonic theory. The major contribution of the Traité is the classification of chords into two categories: "natural harmony" and "artificial harmony." Catel believed that only one chord exists in harmony, the dominant ninth chord, which he derived from the first nine partials of the overtone series. From this chord, he formed the basic triads of "natural harmony," describing these chords as suspensions ("prolongations") of "natural harmony."

This presentation demonstrates the significance both historically and aesthetically of the obscure Portuguese composer Carlos Seixas, (1704-1742), to the development of the keyboard sonata during the transitional period between the Baroque and Classic eras. The relationship between Seixas and his better-known colleague Domenico Scarlatti is explored and particular musical styles and techniques generally assumed as innovations of the latter composer are shown to exist in keyboard works of Seixas which probably pre-date those of Scarlatti. Thematically-related multi-movement sonatas and structural techniques anticipating the ternary single-movement sonata design are illustrated in several of Seixas1 sonatas. In addition to the recorded performance of selected sonatas by Seixas, this dissertation includes three tape recordings of selected piano works by J. S. Bach, Barber, Beethoven, Chopin, Franck, Prokofieff, and Scriabin.

The symphonie concertante, a product of the late eighteenth-century Parisian concert societies, provided a vehicle for display of the virtuoso style sought by contemporary audiences. The works of the Chevalier Joseph Boulogne de Saint-Georges, one of its chief exponents, served as strong influences on the development of the form and its diffusion throughout Europe. The symphonies concertantes of Opus VI, No. 1 and Opus X, No. 2 (according to thematic numbering of Barry S. Brook) date from ca. 1775 and 1779 respectively. A complete set of parts for each is to be found in the private collection of M. Andre Meyer in Paris (Opus VI) and in the Universitetsbiblioteket at Lund (Opus X). The thesis contains background material on contemporary Parisian musical society and the life of Saint- Georges, and a modern scoring of the above symphonies concertantes with analysis and conclusions.

Serge Koussevitzky, conductor of the Boston Symphony Orchestra from 1924-1949, had, throughout his career, a reputation as a champion of modern music. The anticipation of his arrival in Boston in 1924 sparked a great deal of public debate about his reported modernism which the critics reflected and contributed to. This thesis analyzes the critical reaction, preserved in scrapbooks of newspaper clippings at Symphony Hall, Boston, to Koussevitzky's programming of contemporary music during his first five years with the BSO.

Studies of eighteenth-century French musical aesthetics have traditionally focused on questions of taste treated in the critical literature of the day. During the first half of the century, however, certain French writers were dealing with aesthetics in the stricter sense of the word, proposing theories of beauty that suited existing philosophical values. The treatises in which these ideas were set forth--Jean-Pierre de Crousaz' Traité du beau, Jean-Baptiste DuBos' Réflexions critiques sur la poësie et sur la peinture, Yves-Marie André's Essai sur le beau, and Charles Batteux' Les Beaux arts réduits à un même principe--are among the first learned writings to present the musical experience in something other than a mathematical or pedagogical light. This study investigates not only the role music played in these theories of beauty, but also the methodological problems inherent in translating this data into historical information.

Harry Partch's tuning system is an important contribution to tuning theory, and his music is original and significant. Part One of this study presents a brief biography of Partch, a discussion of his musical aesthetics (Monophony and Corporeality), and a technical summary of his tuning system. These elements are placed in historical perspective. Part Two presents a comprehensive analysis of "And on the Seventh Day Petals Fell on Petaluma," discussing the organization of formal, textural, rhythmic, linear, and tonal elements in the thirty-four "verses" of the work. Part Two concludes by showing how large-scale structure in the work is achieved through an overlay process.

Although Shakespeare deliberately downplays characterization in his moonlit dream fantasy, both Britten and Siegmeister exploit this dramatic element as the basis of their opera settings of the play. Through the operas, the shallow characters take on new dimensions, creating musical experiences existing quite independently of Shakespeare, while at the same time retaining the atmosphere of a dream-fantasy. Placing emphases upon varying aspects of the play, the two composers create entirely different revelations from the Bard's dream. This paper presents a study of the way in which drama and characterization are treated in the operas, A Midsummer Night's Dream and Night of the Moonspell.

"Concerto for Piano, Winds, and Percussion" is, as the title implies, a piece which features the solo piano in combination with an ensemble of winds and percussion. The instrumentation of the ensemble is two flutes; oboe; two Bb clarinets; Eb alto clarinet; Bb bass clarinet; bassoon; two Bb trumpets; two F horns; two trombones; baritone; tuba; and a percussion section of three players playing timpani, tambourine, xylophone, vibraphone, glockenspiel, chimes, triangle, suspended cymbal, snare drum, bass drum, two bongos, and small woodblock. The major sections of the piece are distinguished primarily by tempo. The fast-slow-fast arrangement of those sections aligns it with the traditional concerto format. The piece is in one movement and is approximately twelve and one-half minutes in duration.

Johann Anton Kobrich (1714-1791) was the priest and organist of the parish church of Landsberg am Lech in upper Bavaria from 1730 until his death. A prolific composer, Kobrich wrote several works for organ, including the Wohlgeubter Organist (1762), a three-part collection of preludes, fugues, and toccatas. The major portion of this thesis consists of an edition of twenty-six selected pieces from the original fifty-eight in this collection. Also included are a bibliography of Kobrich, a discussion of his significance among other contemporary composers, and a survey of the organs and organ music of eighteenth-century southern Germany. In addition, there is an analysis of the Wohlgeubter Organist and a commentary on its significance.

The music of Marin Marais, a major figure among the French Baroque bass viol composer-performers, is seldom played today. His compositions which are artistically and historically significant, should be available to instrumentalists of this century. Marais published five volumes of bass viol compositions. Seven movements were transcribed from the Second Suite of Marais' first volume. The first chapter is an introduction to Marais; the second chapter pertains to the bass viol and its styles of performance, and the final chapter illustrates the editing required for the transcription. The problems encountered were those of adapting the melodic, harmonic, and contrapuntal styles of the seven-stringed bass viol to the double bass which is normally monophonous. Melodic elements were unchanged, chords were simplified, and contrapuntal lines were retained by giving the second voice to the continuo bass.