The Brazilian Group for Computer Music Research (NUCOM) has become renowned for its annual Brazilian Symposium on Computer Music. The author recounts the group's proto-history-the period of the 1970s and 1980s-with particular reference to the early works of Aluizio Arcela and Eduardo Miranda. The author continues his discussion to focus on NUCOM, which began to take shape in 1993 when Miranda and Geber Ramalho (one of Arcela's students) met in Paris and decided to launch a discussion list on the Web. The following year, Maurício Loureiro chaired the First Brazilian Symposium on Computer Music, affiliating NUCOM to the Brazilian Computer Society (SBC).