Way too cool tool!

How about a calendar that mines your iTunes music library to generate concerts in a calendar format that feature your favorite musicians at a venue near you?

"iConcertCal is a free iTunes plug-in that monitors your music library and generates a personalized calendar of upcoming concerts in your city. It is available for both Windows and Mac OS X and supports worldwide searches."

[click on image to enlarge]

You need only sample the program to recognize its facility for you.
-- David M Gordon / The Deipnosophist