The lecture recital was given February 16, 1976. A discussion of the development of form in the German organ sonata from Mendelssohn to Rheinberger was presented. A performance of representative sonatas by Mendelssohn and Rheinberger was included with the lecture. Two solo recitals and one chamber recital were presented as public recitals in addition to the lecture recital. The first solo recital, on July 2, 1970, included works of Buxtehude, Roger-Ducasse, Bach, and Sowerby. The chamber recital, given with Betty Lambert, soprano, on July 31, 1973, consisted of works by Bach, Pepping, Pinkham, Reger, and Bornefeld. The second solo recital, on April 17, 1978, included works by Lubeck, Balbastre, Bach, Mathias, Karg-Elert, and Dupré. 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.

This dissertation is concerned with the relationship between the trumpet and organ in twentieth-century music for this ensemble and how that relationship effects performance with regard to organ registration and synchronization. The compositions discussed include "The Other Voices of the Trumpet," by Daniel Pinkham (1971); "Jericho: Battle Music," by William Albright (1976); "Three Pictures of Satan," by Jere Hutcheson (1975); and "Okna," by Petr Eben (1980). The theoretical writings of Pierre Boulez, Robert Erickson, and Donald Cogan deal with developing a contemporary concept of texture. This dissertation applies their theory that texture exists in two dimensions: vertical and horizontal. Stratification and blending of timbres comprise the vertical dimension. The succession of textures, governed by tempo, creates the second dimension. Chapter I provides an historical setting for the genre, introduces the theory of Boulez, Erickson, and Cogan, and supplies the programmatic content of the four works chosen for analysis. In Chapter II , the vertical elements of texture in these four works are isolated and examined. Chapter III deals with Pierre Boulez's theory that the succession of textures, governed by tempo, shapes the work. Each work is examined with regard to tempo, either mobile (fluctuating) or fixed. In Chapter IV the …

The lecture recital was given on March 25, 1984. Commotio by Carl Nielsen was performed following a lecture on that particular organ composition. The lecture included a discussion of Carl Nielsen, characteristics of his six symphonies, a detailed analysis of Commotio, and the symphonic characteristics found in Commotio. Some examples from the symphonies as well as other works were performed during the lecture to illustrate the similarities between Commotio and his orchestral works. 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 Couperin, Bach, Hindemith, and Duruflé, was performed on October 30, 1980. On May 6, 1981, the second solo recital was performed. Compositions by Raison, Buxtehude, Bach, Reger, and Martin were included in the program. The third solo recital which included works by Weckmann, Tunder, Lübeck, C. P. E. Bach, and Vierne, was performed on April 25, 1983. The four programs were recorded on magnetic tape and are filed with the written version of the lecture material as a part of the dissertation.

The lecture recital was given on November 20, 1979. The final movement of Widor's Symphonie Gothique, opus 70, the first movement of Widor's Symphonie Romane, opus 73, and the first movement of Dupré's Symphonie-Passion, opus 23 were performed following a lecture on Gregorian Chant in the organ symphonies of Widor and Dupré. The lecture included a brief historical discussion of the decline of organ literature following the French Classical School, the development of the Modern French Organ School beginning with the establishment of the organ department at the Paris Conservatory, the revival of plainsong and the establishment of the School of Solesmes, and the influence of César Franck and the organ symphony. The main body of the lecture included biographical sketches of Widor and Dupré, a discussion of the general characteristics of their organ symphonies, with the emphasis upon those movements specifically employing the use of Gregorian chant.