I've seen the Itronics one. But this is not suitable to what I want to do. I want to be able to use individual LED bars strips where I can lay these strips to the contour of my car trunk lid. the itronices is fixed and a display. As for the 3 channel example, I would rather have the ability to have at least 7 to 10 channels. The Scribd, wow I guess you have to be a scientist to build that one, which I am not. I thought the Arduino processor you could program to light up an led strip for each frequency. If I am off base here, then I guess I need to get educated better on this stuff. Most claim the Ardunio can do almost anything, now I guess not.