The paper reflects on a collective research on musical improvisation in relation to the topic of listening and acoustic ecology, which took place between 2019 and 2021 with the participation of 30 musicians. The paper describes the background, intentions, process and outcomes of the collective research that took the form of intensive week-long collaborative sessions. It also refers to other audio-visual outputs that were part of the research and which capture the audio recordings and reflections of the participants.