Christopher Liscio, the developer of the excellent learning tool Capo, let me know that he has recently updated the app. I’ve previously reviewed Capo and really liked it. Probably the biggest new feature of the app is the ability to save the slowed music so that you can listen to it on an iPod, thus enabling you to practice away from the computer. You can export an entire song or just a looped portion of a song enabling you to customize your learning experience. A podcast series is available on the Capo Web site; the podcast describes how to use the product as well as basic ear training techniques.