Hey everyone! So glad to see a vibrant project community. I’ve been thinking about creating a piece of music visualization art for the playa using 200 LEDs, give or take. What sorts of cool music visualizations have people done with matrixes (e.g., 20x10 leds)? This is a huge inspiration: https://www.youtube.com/watch?v=hJ-QSR3QT5Y…
https://www.youtube.com/watch?v=hJ-QSR3QT5Y
I posted source code and video clip for a two-D matrix animation a while back, here: https://plus.google.com/112916219338292742137/posts/Xg76A57iXV6
Very cool, thanks Mark! 
In currently starting to sort my code working with a large array (24x100, 3 teensy, 8 strips each), I’ll be posting it as I go. Im currently debating a few options.
But I think the 2D matrix Mark posted about is the simplest for a small array.
Cool, Randal. Super looking forward to seeing what you come up with. 