From: Mok-Kong Shen on
It may be of interest to note that there is a very powerful graphical
programming language named Pure Data for the creation of interactive
computer music and multimedia works. See:

http://en.wikipedia.org/wiki/Miller_Puckette

http://crca.ucsd.edu/~msp/software.html

http://www.pd-tutorial.com

M. K. Shen