Through the studio of Media in Architecture an emphasis was given to the communication tools that document relations and time issues. The main theme to investigate was that of the concept of “performance”, refering to the sort of relations between actors and design during the making of the architectural project. As case study, three musicals instruments were chosen (chord instruments for this year), considered to be performative objects par excellence. The students were encouraged to come in touch with various ways of documenting the concept of “performance” by becoming familiar with the cosmos of the musical instruments. In this manner, they dealt with the concept of time and relations, through a series of analytical diagrams and models. The students had the chance to meet people who construct string instruments and to study their performance in the film by Wim Wenders, "Buena Vista Social Club". As a final step they had to design a “case” for the performance of an instrument. Concluding one could say that through this workshop, the students achieved to create and manage in a coherent manner, micro-stories about relations with the concept of performance as the driving force.