“…For Blacking, being interested in change meant rather to "locate when [it] takes place" (Blacking 1977: 13), that is to apprehend societies in the long-term scale of history and identify the moments that herald the emergence of a new form. Though not entering the field of creative process studies, nor announcing it, Blacking thus takes a pioneering interest in change in terms of genesis, drawing on the work of Irvine andSapir (1976) andWachsmann (1958). From the 1980s onwards, it is therefore not surprising that the issue of change became part of the "historical ethnomusicology" current, which consists in studying the historical sources, written and oral, of musical practices that are part of strong social dynamics (see Blum, Bohlman and Neuman 1991).…”