Watch Making a Diagonal With Music (2020) : Full Movie Online Free A short film about the Argentine electroacoustic composer Beatriz Ferreyra, an original pioneer of early musique concrète alongside Pierre Schaeffer during the ‘50s and ‘60s. Here she discusses her ‘sound hunting’ recording techniques, and other thoughts on sound montage and spatialization. Featuring creaking doors, barking dogs and rainbow hands. Official Selection International Film Festival Rotterdam (IFFR) 2020