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if i keep recalling it, something had to change...(2023)
(for drum and computer) - excerpt
performed by Murphy Janssen

As the title suggests, this piece is about the constructive nature of memory. Often, when one tries to recall something from the past, there are pieces of information missing, so one has to fill in these pieces by making them up, whether consciously or not. During the making of these missing pieces, which is a creative process, different memories intermingle - memories of varying periods, levels of logicality, different suggestive capabilities, and different doubts, all of which contribute to a potentially poetic experience and an updated memory. The project explores this idea – an excerpt performed by the performer before was fragmentized into small pieces. The whole performance can be regarded as his attempt to recall the excerpt by being reminded of the fragments, trying to retrieve them, and interacting with them, all of which transform the fragments in real time, leading to a new memory.  

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Technical Concerns:

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This piece mainly utilizes machine listening—having the computer listen to the drummer's playing captured via microphones positioned at different parts of the drum set. It listens to the onsets, the amplitude, the frequency, the entropy, the flatness, and the centroid to generate the spatialized (in 3rd-order Ambisonics) sonic materials, which in turn influences the drummer's decision-making in his improvisation. Therefore, it is a feedback loop consisting of the drummer and computer discussing musical choices.  
 

Machine listening via SuperCollider example can be found in documentation.

Complete version (video edited by Murphy Janssen)

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