The viewer in a room listens to the one piece for solo cello that with the particular dynamics reaches ecstatic sound characteristics. The composition is based on a certain module structure, which allows to retrieve and to play singular sequences in such a way, that the recipient can not perceive any break in the musical structure of the composition. The macro shooting of the violoncellis´s hands is projected on the screen. With the low depth of focus the video images oscillate between concrete realism and abstraction. “Mu A Zi Kyong” is a very common Korean phrase. It describes the state of mind engrossing, “self-oblivion”, which affiliates to Buddhist philosophy. The title of this interactive video-sound-installation that was realised in a cooperation with composer Theodor Pauss, violoncellist Oliver Mascarenhas and programmer Yunchul Kim alludes to those moments, which cannot be controlled by an individual himself: “non self situation” is the moment of letting something happen, of sinking into broader wholeness of “going on”. The musical modules, always combined with corresponding images, programmed in such a way, that the dynamics of the music correlates the number of the viewers, in other words, the more viewers enter the room, the more ecstatic becomes the sound. In accordance with the intensifying sound, video images commence to be more abstract. The dynamics is consequently influenced by the entered viewers. Additionally, in order to avoid permanent repetitions, the programmed modules structure is also influenced by the random factor.