The Pure Data (short Pd) project on SourceForge unifies the extensions (or externals) written for the Pure Data Graphical Computer Music System written by Miller Puckette with contributions from many others.
a netpd session on GNU/Linux
excerpt of score made with Pd's graphical data structures
screenshot of a chdh performance using OpenGL in realtime
some characters from the PD Bear animation
an editor for creating Mass-Spring-Damper physical models