The following thesis is the analysis of Juan Gelmans expression of sorrow and restlessness in the lyrical poems in “Notes” and “Open letter”. These works describe the situation in Argentina in the ‘70’s when political detentions, forced disappearances and other crimes against humanity occurred. The objective was to highlight the existence of the undefined continguous to the collective memory. For this reason, this work employed the hermeneutic method to examine the constructions of his writing, such as the use of the forward slash, ungrammaticalities and figures of speech. Since the aim was also to analyze the characters of the collective memories in the poems, some of the social psychology theories were applied as well. The conclusion is that Gelman manoeuvred the lenguage in order to highlight the reality in a time when the state attempted to silence it. His lyrics uses several linguistic tools with the aim to approach the reader for a further deeper understanding of the circumstances. This is of major importance since the collective memory has the function of understanding the past in order to understand the present in society.