Vivencia were an Argentine acoustic rock band, formed in Buenos Aires in 1972 during the El Acusticazo era. They consisted of Eduardo Fazio (1943-) and Héctor Ayala (1943-2016), son of the folklore and tango guitarist Héctor Ayala. Their most famous album was Mi Cuarto (1973), in which the synonymous song of the same name is found, and is considered an Argentine national rock classic.

Source: Wikipedia (https://en.wikipedia.org/wiki/Vivencia_(band))