The Two Etudes: "Harmonies," and "Coulée" and the Volumina of Ligeti were performed following a lecture on avant-garde techniques in organ works of György Ligeti. The lecture included a brief discussion of earlier twentieth century antecedents of new sound materials and concepts, a biographical sketch of Ligeti and general style features of his works. The main body of the lecture included notational methods, specific style features, and performing scores of Ligeti's three organ works. In addition to the lecture recitals three other public recitals were performed which consisted of solo compositions for the organ.

The lecture recital was given April 16, 1971. An Excellent Meane, six settings of Gloria Tibi Trinitas, Eterne rerum conditor, and Te Deum laudamus by William Blitheman, In Nomine by John Taverner, and Ecce tempus idonem by Thomas Tallis were performed, together with a choir of four men's voices, following a lecture on various aspects of organ music in early Tudor England. In addition to the lecture recital, three other public recitals, all solo programs, were performed. The first solo recital, including works of Dietrich Buxtehude, Johann Sebastian Bach, Paul Hindemith, and Max Reger, was performed on March 14, 1971. On October 23, 1972, the second solo recital was performed. The program included compositions by Olivier Messiaen, Johann Sebastian Bach, Cesar Franck, and Charles-Marie Widor. On October 17, 1977, the third solo recital, including works by Johann Sebastian Bach, Girolamo Frescobaldi, Johann Jacob Froberger, Dietrich Buxtehude, James Hathaway Tallis, and Maurice Durufle, was performed. The four programs were recorded on magnetic tape and are filed with the written version of the lecture as a part of the dissertation.

This dissertation is a study of the styles shown in Reubke's The 94th Psalm. As a student of Hermann Bonicke, Theodor Kullak, and Adolf Marx, Reubke was trained in the masters of the Baroque and Classical traditions. Written after his study with Franz Liszt in the newer style, The 94th Psalm is a crystallization of these various influences into his own personal style, a remarkable achievement at age twenty three. It is a synthesis of two different styles of organ music at the time; the traditional and conservative represented by Mendelssohn and Schumann, and the progressive by Liszt. Reubke's unique approach to the sonata fomi in the "double function" unified three individual movements into one musical entity by the use of the cyclic theme. The harmony and the tonality are advanced and anticipate the late nineteenth-century style. As the first programmatic organ music in the nineteenth century, The 94th Psalm is an idiomatic organ work which employed the virtuoso piano technique of the time. In spite of Reubke's young age, The 94th Psalm demonstrates his great maturity. His wish to express himself is realized in the work in profound depth and imagination. Through the psalm text he poured out his …

This dissertation is an analysis of two of the six sonatas for organ using rhetorical-musical prescriptions from seventeenth and eighteenth-century German theorists. It undertakes to examine the way in which lines are built by application of figurae, to observe the design of each of the six movements, and to draw conclusions concerning implications for performance based upon the use of figurae in specific contexts. The period source on melodic design and the ordering of an entire movement based upon principles of rhetoric is Johann Mattheson's Per volkommene Capelmeister (1739). Guidelines for categorization of figures derive from the twentieth-century writers Timothy Albrecht, George Buelow, Lena Jacobson, and Peter Williams. Chapter I provides justification for the rhetorical approach through a brief description of the rise of the process as applied to composition during the Baroque period by relating Bach's own familiarity with the terminology and processes of rhetorical prescription, and by describing the implications for performance in observing the sonatas from the rhetorical viewpoint. Chapter II deals with the process of composition by rhetorical prescription in (1) the invention of the subject and its figural decoration and (2) the elaboration of the subject through the sixpart discourse of an entire movement. Specific …

The lecture recital was given July 22, 1974. A discussion of the tientos of Cabezon, Aguilera de Heredia, Coelho, Correa de Arauxo, and Cabanilles included an analysis of eight specific works, a comparison of styles, and information about performance practices. The eight works were then performed. In addition to the lecture recital three other public recitals were performed, consisting entirely of solo literature for the organ. The first solo recital, on July 2, 1971, included works of Titelouze, deGrigny, Franck, and Alain. The second solo recital, on June 18, 1973, consisted of works by Bach, Klebe, Bruhns, Reger, Heiller, and Liszt. The final solo program, on June 7, 1974, included works by Boyvin, Buxtehude, Mozart, Alain, and Reger. All four programs, recorded on magnetic tape, are filed, along with the written version of the lecture material, in the North Texas State University library.

The lecture recital was given on August 9, 1974. Chorale partitas by Sweelinck, Scheidt, B051hm, and Walther were performed following a lecture on the chorale partita in the Baroque period. The lecture included a discussion of the instruments that the partitas were written for and the functions for which they were written. The works of Sweelinck and Scheidt and their influence on later composers were discussed. A number of lesser-known composers and their works were mentioned. Also, there was a discussion of works by well-known composers such as Bohm, Pachelbel, Buxtehude, Walther, and Bach. In addition to the lecture recital, three other public recitals were performed, all of which consisted of solo compositions for the organ. The first solo recital, including works of Buxtehude, Bach, Walther, Pepping, ?ranck, Alain, and Durufle, was performed on July 18, 1971. On August 13, 1972 the second solo recital was performed. Compositions by Greene, Stanley, Searle, Willan, Dandrieu, Roger-Ducasse, and Langlais were included in the program. The third solo recital, which included works by Sweelinck, Bach, Guillou, and Reubke, was performed on June 5, 1974. The four programs were recorded on magnetic tape and are filed with the written version of the lecture material …