between the minutes

This essay examines the subjective perception of time during the performance of long musical forms from the perspective of the performer. The starting point is the composition "Haltezeit", which works specifically with the stretching of time. Two improvisational performances without an audience will be used to explore how the perception of time changes in the course of performances lasting several hours and how this influences improvisational behavior. Practical experience is combined with concepts from the fields of philosophy, performance studies and musical improvisation research. The artistic experiments show that physical states such as tiredness or tension as well as external disturbances significantly influence the subjective perception of duration. While inner restlessness led to an extended experience of time and more frequent improvisational interventions, calmness and concentration favored a condensed, meditative experience of time with less frequent changes.Artistic practice thus becomes an experiential space for a qualitative perception of time beyond measurable structures. The essay sees itself as an open research gesture that invites us to perceive time more consciously as a flowing continuum in a performative context. keywords: long durational composition, artistic time research, subjective perception of time, attention