College Music Symposium. — Vol. 31. — 1991. — p. 91-116.
The first part of this article is devoted to deals with the definition of iconography to performance practice. In the second part outlines some general pr the study of medieval music iconography, and deals wit principles include balancing visual evidence against writ guishing between symbol and documentation of conte recognizing in art the historical precedents for instrumenta illustration. A discussion of depictions of trecento angel musicians, as opposed to contemporary liturgical scenes, demonstrates that different types of depictions vary in their value as evidence for performance practice. Finally, a study of the instruments the trecento angels play leads into the possible role of the double pipe and the bagpipe in the development of early polyphony.