ETDs

This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.

In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.

Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.

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An ultrasonographic observation of saxophonists' tongue positions while producing front F pitch bends

Description
Voicing, as it pertains to saxophone pedagogy, presents certain obstacles to both teachers and students simply because we cannot visually assess the internal mechanics of the vocal tract. The teacher is then left to instruct based on subjective “feel” which can lead to conflicting instruction, and in some cases, misinformation.…

Voicing, as it pertains to saxophone pedagogy, presents certain obstacles to both teachers and students simply because we cannot visually assess the internal mechanics of the vocal tract. The teacher is then left to instruct based on subjective “feel” which can lead to conflicting instruction, and in some cases, misinformation. In an effort to expand the understanding and pedagogical resources available, ten subjects—comprised of graduate-level and professional-level saxophonists—performed varied pitch bend tasks while their tongue motion was imaged ultrasonographically and recorded. Tongue range of motion was measured from midsagittal tongue contours extracted from the ultrasound data using a superimposed polar grid. The results indicate variations in how saxophonists shape their tongues in order to produce pitch bends from F6.
ContributorsLemoine, Ryan Cole (Author) / Gardner, Joshua T (Thesis advisor) / Creviston, Christopher (Thesis advisor) / Feisst, Sabine (Committee member) / Spring, Robert (Committee member) / Arizona State University (Publisher)
Created2016
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Clarinet multiphonics: a catalog and analysis of their production strategies

Description
Clarinet multiphonics have become increasingly popular among composers since they were first introduced in the 1950s. However, it is a topic poorly understood by both performers and composers, which sometimes leads to the use of acoustically impossible multiphonics in compositions. Producing multiphonics requires precise manipulations of embouchure force, air pressure,…

Clarinet multiphonics have become increasingly popular among composers since they were first introduced in the 1950s. However, it is a topic poorly understood by both performers and composers, which sometimes leads to the use of acoustically impossible multiphonics in compositions. Producing multiphonics requires precise manipulations of embouchure force, air pressure, and tongue position. These three factors are invisible to the naked eye during clarinet performance, leading to many conflicting theories about multiphonic production strategies, often based on subjective perception of the performer. This study attempts to observe the latter factor—tongue motion—during multiphonic production in situ using ultrasound. Additionally, a multiphonic catalog containing 604 dyad multiphonics was compiled as part of this study. The author hypothesized that nearly all, if not all, of the multiphonics can be produced using one of four primary production strategies. The four production strategies are: (A) lowering the back of the tongue while sustaining the upper note; (B) raising the back of the tongue while sustaining the upper note; (C) changing the tongue position to that of the lower note while sustaining the upper note; and (D) raising the root of the tongue (a sensation similar to constricting the throat) while sustaining the upper note. To distill production strategies into four primary categories, the author documented his perceived tongue motion over twenty repetitions of playing every multiphonic in the catalog. These perceptions were then confirmed or corrected through ultrasound investigation sessions after every five repetitions. The production strategies detailed in this study are only for finding the correct voicing to produce the multiphonics. The catalog compiled during this study is organized using two different organizational systems: the first uses the traditional method of organizing by pitch; the second uses a fingering-based system to facilitate the ease of finding multiphonics in question, since notated pitches of multiphonics often differ between sources.
ContributorsLiang, Jack Yi Jing (Author) / Gardner, Joshua (Thesis advisor) / Spring, Robert (Thesis advisor) / Caslor, Jason (Committee member) / Creviston, Christopher (Committee member) / Rockmaker, Jody (Committee member) / Arizona State University (Publisher)
Created2018