Here's another pass at the 'chord voicings' program, this one as an attempt to teach myself Javascript. Most of the details are the same as on the chord finder page If you're interested in such things, you can look at the Javascript code. I've only tested this in Mozilla and Firefox; I don't own any Windows or Macs to try this on, so it might not work on other platforms. If you can make it work elsewhere, you can try contacting me with patches; ditto if you find any obvious bugs.