lstn is an open source program that sonifies other programs by attaching to them fetching memory, current cpu opcodes and call stacks.Michael Takezo Chinen
It can also 'playback' blocks of memory and control the speed of the program being attached to. The sonification methods are still being developed, but one of the aims is to keep the sonification mostly 'honest' and perceptually meaningful. There will be much more development of these methods as well as the UI.
This demo features it being used on OS X's TextEdit, Dock, Finder, and Audacity.
The attaching methods are modified from gdb and boinc source.