To explain and illustrate "levels of abstraction" I presented several examples taken from music sources, primarily 20th century music. This presentation marks the start of a scholarly interest in music and other aural aspects of human communication. My original quantitative research "Meaning, Music, and Human Communication" (1978 - 1981) grew out of this initial presentation.
With a renewed interest orality/aurality and technology (as discussed by Walter Ong, among others), an emerging interest in child development and communication (including such conditions as Asperbger's Syndrome, ADD/ADHD, PDD, Sensory Integration Issues, Autism, ODD, etc.) and a new-found home in "Media Ecology," I am presently revising this material in an effort to develop behavioral methods (versus medicinal methods) of helping the increasing numbers of children affected by what seem to be conditions of impaired auditory processing.