In Schaefferian theory, typo-morphology is the initial phase of the programme of musical research, which regroups as complementary the two procedures of typology and morphology: these actually constitute a stage of exploring, assessing and describing sound; whereas the two procedures of analysis and synthesis arise from an analysis and an exploitation of the musical capacities of the sound object. Thus, typo-morphology is a descriptive inventory which precedes musical activity.
The three tasks of typo-morphology are: identification, classification, description.
* Identifying sound objects, that is, isolating them, cutting them into sound units.
* Then, classifying them into basic characteristic types.
* Finally, describing their characteristics in detail.
Typology takes care of the first two; morphology the third. (Paraphrase of Michel Chion (1983). Guide des Objets Sonores. Eds. Buchet/Chastel, Paris. 1995 translation by John Dack/Christine North.)
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