During the Montreux Jazz Festival in July 2015, we spent two weeks at the Montreux Palace testing the first concept. We selected a series of participants including musicians, journalists, EPFL professors and designers and presented the first ideas on reflection, interactivity and sound to them. These tests were of a structural nature conducted by ALICE, the EPFL research center in charge of space development. From these tests we received important inputs which led to the opening new avenues of research, and made us rethink some others. For example, we learned that any activities that were in addition to watching the concerts, did not enrich the experience, but instead were a distraction. We also found that the inclusion of historical references linked to the images and the history of the Montreux Jazz Festival was really appreciated.