»aber nur einmal – am Ende«, created at the Neue Musik Zentrale Essen, is conceived as a process- oriented realisation of Benjamin’s figure of the ›collector‹. In place of a linear narrative structure, there is a dramaturgy of layering and found objects. (Prepared) guitar and zither form the instrumental framework for an exploration of haptic storage media: analogue audio tapes, cassettes and dictation machines function as unstable containers of time.