I have written a chord diagram utility about 2 years ago, and it has been distributed on CDs bundled in a few magazines during the last year.
It is freeware, and I also offer the source code for anyone to use, examine, or extend the functionality. There is no adware in it, and it is not a crippled "demo" product. As a musician who is also a programmer, it is something I wanted to share.
You can download it here:
http://zippybackflash.com/software-quickchord.php
Or, just google "QuickChord" and you will find it posted on all the major and reputable download sites as well.
It runs on Windows XP, so Mac users are out of luck. (Although I now own a Mac, and am trying my hand at Mac development.)
