Your Own Private Plexure : About 13 years ago John Oswald gave us his masterwork of audio collage, Plexure, which wove together minute fragments of the greatest hits of the previous 10 years into a brilliant sound tapestry. Now you almost get to do the same thing in a few moment with your own music collection, at least whatever portion of it you keep in iTunes, thanx to Jason Freeman's iTunes Signature Maker. The Java program asks you a few configuration questions like how many songs you want to include and how big the fragments should be, and then crunches away for a few minutes to give you a little clip that is a brief collage of the songs you've been listening to. Here's an example One really nice feature of the program is that after it builds the signature, you can look at the "structure" of it.