Jakub Korczyński

Entrepreneur, composer, programmer and photographer with a passion for modern music, dance and functional programming.

What should I begin with? Maybe with my personal goal? I've acquired many skills throughout my life with one basic purpose - to cross interdisciplinary boundaries and express myself through art, technology, philosophy, religion and sports, because I feel the none of these disciplines alone are sufficient to realize any human being.

I took up functional programming during my studies at the University of Wrocław. The cause was to have a tool for expressing ideas in the realm of technology. I also studied double bass and music composition at the Academy of Music in Wrocław. Then I got hooked on street photography and afro-cuban dance. Currently I am on the road to becoming a serial entrepreneur.

``Now art is the contrary of chaos.''---this statement made by Igor Stravinsky in his ``Poetics of Music'' emphasizes the fundamental problem of music, which is organizing sound into a coherent logical whole.
   This problem of opposing chaos has been up until till now only partially solved, hence many different music composition methods and styles.
   We propose structure theory, which is a system for organizing sounds by means of a mathematical graph model, that can form the basis of any musical piece, independent of style.
   The foundations of the model are two sets of rules for modeling: the perception of time and the perception of sound in the horizontal and vertical contexts.

   To provide a tool for composers and music theoreticians to experiment with structure theory, we further propose the Forte Framework for Music Composition.
   The framework consists of two embedded domain-specific languages: the Forte DSL and the Graph DSL.

   The domain of the former is the music analysis theory of Allen Forte which we describe, systematize and enhance with several generalizations.

   Besides proposing a DSL for this domain we contribute by showing how to use the knowledge of the domain itself, indexed type families and phantom types to achieve: (1) implementation swapping, (2) self-optimizing library code and (3) boilerplate code reduction.
  
We provide the aforementioned features in a purely functional setting and without building an abstract syntax tree (we use a shallow embedding).

   Our second proposal, the Graph DSL, is an implementation of our structure theoretic graph model.

   To materialize our ideas for music organizing we describe an algebra for directed acyclic graph manipulation and show how structure theory can be translated onto this algebra.
   The Graph DSL itself is general enough to be used for creating and transforming graphs from  other domains, but we focus on presenting our DSL in the context of the Forte Framework, with the Forte DSL being the drop-in language for node specification.
   We also show an extended example of music analysis that demonstrates one of the two possible applications of our framework, with the other major use being music composition.  We chose Haskell to implementent both the Forte DSL and Graph DSL of the Forte Framework.

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