Greetings folks and I'm hoping my shameless self promotion is in the correct forum. http://www.realbook.us For those of you don't know, this site is host to the chord charts of over 500 tunes, the majority of them being Jazz standards. The cool thing about the site is the ability to transpose the chart to any key. The site has just gotten cooler. I have recently added a java applet to the site that allows you to hear the harmony of the chart in whatever key you select. Check it out, I'd love to hear your feedback.