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During the designing of "Essentials of Computer Music" course, I felt the need to discuss with the students that composers must determine the structure of their music on the basis of partially ambiguous data . There was not enough time available for this and eventually it went to many separate sessions. In those sessions we explored what syntax analysis and parsing models can offer for the methods of music composition. I started some workshops with the students to answer their questions while composing, performing and recording. The result of these sessions is the compilation "23.9344699". The "Single Line Chromadynamics No3 Aligned" is a piece I wrote and recorded two years ago, as a part of my "single Line" works, but as we used it as an example in the workshops, I decided to put it in the compilation. (M.Pazhutan/Nov.2012)