Half-closed Loop | Thranophone & Trumpet duet

Till Bovermann: Half-closed Loop - an improvisation environment for covered string and performer The performance “half-closed loop” is a take on an instrument for a storytelling improvisation. By means of feedback induction on various levels, particularly by a custom instrument consisting of a string in a brass pipe and a wooden board with attached structure-borne drivers, the design’s idea is to not only allow the performer to produce a broad range of musical expressions but to also integrate elements of instability into the performance. Being designed as an open system with a significant amount of complexity in routing and control, the instrument lets performer and instrument “fuse” into one meta-system of human-instrument entanglement Ingi Garðar Erlendsson & Eiríkur Orri Ólafsson: Thranophone & Trumpet duet Ingi Garðar plays the Thranophone, which is a method of preparing the tuba in order to turn it into a feedback mechanism. The performer puts a small microphone into his mouth and a loudspeaker sitting in the bell of the tuba. Eiríkur plays an unprepared trumpet and a microphone. The set is improvised. ICLI 2016: International Conference on Live Interfaces Meeting House, University of Sussex, UK. July 1st, 2016.