Recording of Coriún Aharonián's "Esos silencios" ("Those silences"). "Esos silencios" are the silences of our daily vital experience of the seventies in almost all Latin America. "We do not desire them, but they surround us always, until we finally succeed in breaking them," Aharonián wrote. It exclusively uses materials of microphonic origin. Some of the sounds have been made with instruments constructed in Guatemala by Joaqu’n Orellana. The decision to bring to life the piece at that historic moment was convergent with the emotional experience that the pricking edges of the delicate drawings by the Argentinian-Uruguayan Mar’a Carmen Portela and the gagged yell of the dramatic paintings by the Uruguayan Hilda Lopez. In Esos silencios there is a will to establish large, apparently static, areas, with latent tensions, in a structure of full hard edges, almost without the concession of transitions.The piece was originally composed in 1978 and was revised in 1981. It was realized in Elac, the studio of Montevideo. The materials of departure have been produced by the author

Recording of Ricardo Mandolini's Cancion de Madera y Agua. This is an electroacoustic piece that was created with concrete sound materials. These materials include water and wood which are represented by means of two different musical propositions.

Elicitation of a Hani word list featuring 2 utterances of each word in isolation by a male speaker. Recorded in Kunming, Yunnan province, China.