The musical score can be a site for dynamic exchange between performance and analysis, a place for conversation about material and meaning. As is typical in conversation, conundrums or disagreements generate new ideas and new forms; problems become possibilities. Such is the case in navigating the scores of Lucia Dlugoszewski, who sought radical ways to produce and notate sound forms from around 1950 until her death in 2000. This article is not intended to serve as a survey of Dlugoszewski's work but to document an exploration of the role that dialogue plays when performing and analysing musical repertoires. Its two authors will perform an excerpt of an ongoing dialogue about the challenges of navigating Dlugoszewski's innovative scores. A circularity emerges as every potential solution is performed, evaluated, and questioned anew; through this cycle, analysis and performance become a unified, continual process. A thesis emerges from the dialogue: Dlugoszewski's scores are a documentation of logic that is not present as much as one that is, a kind of notation in reverse, an ideal realised through performance at the edge of practical execution. [ABSTRACT FROM AUTHOR]