Este texto corresponde a la investigación UBACyT “Acerca de las culturas de las cátedras de una organización de música popular. Historia e identidad. Patrimonio cultural” que se desarrolla en la Escuela Popular de Música (EPM), del SADEM y a la tesis de doctorado “Construcción de la Cultura e Identidad de una escuela de música popular”. Las impresiones estéticas y los sentidos antropológicos de la sonoridad de una Escuela Popular de Música son claves explicativas en esta presentación desde una mirada integradora de la Psicología Institucional. Esta institución posee una cultura organizacional singular que incluye una sonoridad particular que, siendo al mismo tiempo su ideal, le otorga identidad a la vez que propicia la construcción de lazos sociales entre sus integrantes. Palabras clave Estetica Antropología Cultura Sonoridad ABSTRACT TWO KEYS TO STUDY OF CASE ACCORDING TO THE APPROACH OF INSTITUTIONAL PSYCHOLOGY This text corresponds to the UBACyT research work, “Of the cultures of the chairs of an academic institution of popular music. History and identity. Cultural heritage”, developed in the People’s School of Music (EPM) under subsumed to SADEM (Argentine Musicians’ Society).Dissertation for a doctorate: “Building the Culture and Identity of a school of popular music”. From the holistic approach of Institutional Psychology, the aesthetic impressions and the anthropological meanings of sonority in a school of popular music are the explanatory keys expounded in this presentation. The aesthetic proposition of the institution under study revolves around the characteristics of popular music: improvisation, diversity, insertion, its popular nature.The school displays a sonorous organizational culture whose meaning builds its members’ identity and social bonds; the significance of popular music therefore constitutes and ethical ideal that unifies diversity. Key words Aesthetic Anthropology Culture Sonority