Code example in C++ by Pieter Suurmond, march 2, 2004 - COPYLEFT,
  demonstrating:
    
      1) How to implement linear difference equations as C++ objects.
         Focussing on a systems that became known as 'Karplus Strong'.
      2) How to write AIFF files (on both big and little endians).
      3) How to integrate pieces of C code into a larger C++ program.

  C++ object
  ==========
  ks.hxx      Definition (i.e. specification) of the KS class.
  ks.cxx      Source that implements our KS class, that is,
              allocating and running linear difference equations in the 
              form y[n] = 0.49609375 (x[n] + y[n-L] + x[n-1] + y[n-L-1]).
  C object
  ========
  wraiff.h    C API for writing AIFF files.
  wraiff.c    Implementation (in object oriented ISO/ANSI C style).
  
  C++ object
  ==========
  wraiff.hxx  The same but now in C++ (just wrapping the above header).
  wraiff.cxx  Just wrapping the above C code.

  C++ program
  ===========
  main.cxx    C++ program containing main(). It uses both above objects,
              KS to pluck strings, WRAIFF to write the result to audiofile.

  Compilation
  ===========
  Makefile    Tells how to do it on UNIX (also Mac OSX). Users with a
              graphical interface on top of their compilers can simply 
              put the 3 sourcefiles  ks.cxx, wraiff.cxx and main.cxx 
              in an standard C++ project. That's all.
  Output
  ======
  ks.aiff     Is the audio result.