This chapter locates CLAEM as part of a fast-growing cosmopolitan Buenos Aires and within the Di Tella Institute and its other art centers. It then provides an overview of the fellows, professors, facilities, and activities that constituted CLAEM during its ten years of existence, payin attention to the ways material conditions—including infrastructure, salaries, fellowships, guests, library, and the electronic music laboratory— created an ideal space for creativity and experimentation. The chapter reveals how these intellectual, material, and personal conditions made CLAEM a crucial transnational space for the creation of regional professional networks of solidarity and considers how the two-year duration of CLAEM fellowships and the regional focus of the program allowed profound exchange among some of the most talented composers of the entire region.