This study focuses on temporal aspects of the music of Krzysztof Penderecki and deals with these on the level of textural activity. The analyses are based on a referential idea called a "discrete sound event," defined as an occurrence of a sound or collection of sounds which, as a unit, is distinct from the surrounding texture. These sound events are then used to appraise textural activity from layer fluctuation and composite density. The pieces selected for applying these techniques are the Threnody to the Victims of Hiroshima, from 1960, the Fluorescences, from 1961, and the 1965 Capriccio for oboe and strings.

The Concert for Guitar and Chamber Orchestra, a three-movement work, is approximately seventeen and one-half minutes in duration. Adhering to the three movement concerto form, the work reflects the influence of several styles of twentieth-century orchestral music. In the first movement, two principal motives, significant throughout the work, are developed in a series of metered and non-metered events. The second movement consists of a set of guitar cadenzas framed by increasingly complex material in the orchestra. The third movement explores an application of the two principal motives in a rondo setting.

Concert performed at the UNT College of Music Concert Hall.