An Overview of PWGL, a Visual Programming Environment for Music

Autor: Mikael Laurson, Mika Kuuskankare, Vesa Norilo
Rok vydání: 2009
Předmět:
Zdroj: Computer Music Journal. 33:19-31
ISSN: 1531-5169
0148-9267
DOI: 10.1162/comj.2009.33.1.19
Popis: This article provides an overview of our free Lispbased, cross-platform, visual programming environment called PWGL (the name is an acronym for PatchWork Graphical Language). PWGL can be used for computer-aided composition, music analysis, and sound synthesis. Our work is influenced by our past experience with PatchWork (Laurson 1996; Assayag et al. 1999). However, PWGL has been completely rewritten and redesigned in our attempt to develop and improve many of the useful concepts behind PatchWork. PWGL and several of its applications have already been discussed in our previous work, including Laurson and Kuuskankare (2002, 2006), Kuuskankare and Laurson (2006), and Laurson, Norilo, and Kuuskankare (2005). Since 2002, PWGL has undergone several revisions and additions including the public release, launching of the PWGL home page, inclusion of the tutorials and new programming interfaces, etc.; each of these have been attempts to make our system more available and more easily approachable within the computer music community. The main purpose of the present article is to give a general overview of the current state of the system with an emphasis on features that are useful for potential PWGL users, such as composers, music analysts, and researchers. PWGL is programmed ANSI Common Lisp (Steele 1990) from LispWorks (www.lispworks.com), which is source-code compatible across several different operating systems, such as Macintosh OS X, Microsoft Windows, and Linux. LispWorks provides support for Foreign Language Interfaces, by which a program written in one programming language can call routines or make use of services written in another. LispWorks also supports the OpenGL graphics library API. (The graphics part
Databáze: OpenAIRE