Place and Innovation in Popular Music: The Bebop Revolution in Jazz

This paper explores the relationship between place and processes of innovation in popular music, focusing on the example of the bebop style of jazz. Bebop emerged during the 1940s both as a reaction against older jazz styles and as an expression of artistic innovation within a community of younger jazz musicians. The process of its creation and early development was situated in a set of "nested'' locales centered in New York City. This analysis examines the diverse nature of these locales and the distinctive ways in which they fostered interactions among bebop's creators and their various audiences. The analysis reveals that different locales played dissimilar roles during specific stages in bebop's emergence, as it evolved into an increasingly coherent form of cultural expression. Most importantly, certain jazz clubs in Harlem provided a setting for the early experimentation that culminated in the bebop style, but the style's subsequent formalization and popularization depended on its exposure in jazz clubs in midtown Manhattan, at first along 52nd Street and later on nearby sections of Broadway. These findings confirm the importance of place in understanding the dynamic nature of popular music and the processes of innovation integral to it.     

Characterization and origin of black and red Magdalenian pigments from Grottes de la Garenne (Vallée moyenne de la Creuse-France): a mineralogical and geochemical approach of the study of prehistorical paintings

Pigments sampled from wall paintings and from crayons taken on the floor, at the Grottes de la Garenne (Saint-Marcel – Indre, France) have been analyzed and characterized by infrared spectroscopy, Raman micro-spectroscopy, X-ray diffraction, ICP/MS and analytical TEM. The red pigment used for the wall paintings is mainly composed by hematite, clays, carbon matter and carbonates. Results on the red pigments show that the compositions of the paintings are similar to that of some crayons. Regarding these analyses, their origin is compatible with local siderolithic facieses. Analysis of black pigments shows that they are made of cryptomelane, pyrolusite, clays, carbonates and carbon matter. It shows also that paintings and some crayons compositions are compatible. On the contrary of red pigments, the origin of black pigments is probably allochtonous. Indeed, the traces of thallium detected in cryptomelane, the cerium anomaly and the absence of iron are not compatible with local facieses or other sites from the French Massif Central.