PWGL is a free cross-platform visual language based on Common Lisp, CLOS and OpenGL, specialized in computer aided composition and sound synthesis. It integrates several programming paradigms (functional, object-oriented, constraint-based) with high-level visual representation of data and it can be used to solve a wide range of musical problems. PWGL is based on many concepts and ideas that were originally developed for PatchWork (Laurson, Rueda, Duthen, Assayag, Agon) and thus credit should be given to numerous programmers, composers and researchers that were involved in this project. PWGL is developed at Sibelius Academy in Finland by a research team consisting of Mikael Laurson, Mika Kuuskankare, and Vesa Norilo. Currently, PWGL runs under Mac OS X and Windows XP operating systems. PWGL is distributed in two different configurations: as a standalone application, called PWGL Application, that is targeted mainly to end users, and as a developers version, PWGL Binaries, that requires the LispWorks programming environment. This version is be made available as a pre-compiled module that is loaded on top of LispWorks.
“Music is then no longer primarily conceived as a guide for premeditated emotions, but as the density of the possible relationships which first become actuality during production under the influence of chance, and which during performance are presented to the listener as sounds beyond any environmental associatiations, independent of bodily actions required to produce sounds...”
“The computing machine is a marvelous invention and seems almost superhuman. But in reality it is as limited as the mind of the individual who feeds it material. Like the computer, the machines we use for making music can only give back what we put into them.”
“... and the hope of an extraordinary aesthetic success based on extraordinary technology is a cruel deceit.”
“Composers are now able, as never before, to satisfy the dictates of that inner ear of the imagination. They are also lucky so far in not being hampered by esthetic codification -- at least not yet! But I am afraid it will not be long before some musical mortician begins embalming electronic music in rules.”
“... the individual and the society are deprived of the formidable power of free imagination that musical composition offers them. We are able to tear down this iron curtain, thanks to the technology of computers...”
“The characteristics of every sound depend on the way in which the sound was produced. Each art-form exploits its special production methods in order to endow the phenomena with unmistakable characteristics. Artistic economy demands that the means be appropriate to the end, and that the exploitation of the means be an end in itself.”
“The danger is great of letting oneself be trapped by the tools and of becoming stuck in the sands of technology that has come like an intruder into the relatively calm waters of the thought in instrumental music.”
“With the development of electronic and computer music, multidemnsionality of sound representation turned out to be both natural and useful. But music goes beyond multidimensionality -- it is even more complex.”
“... the use of numerical machines no longer stands in need of justification. It is not a mystery. If there is a mystery, it is in the mental structures of music and not in the computers, which are only tools, extensions of the hand and the slide rule.”
“... but beware, technique can submerge the user: We must defend ourselves; it is good to use techniques, but we have to dominate them, to stay alert.”
“The use of computers is the logical outcome of a historical development. It by no means heralds a new musical epoch; it simply offers a fast, reliable and versatile means of solving problems that already demanded solution. The person who writes the computer programme must bear the development of musical language up to the present in mind, and try to advance a stage further.”