Grid going down then across, left to right, top to bottom. Left column first, then top row, then second-left column, then second-top row, etc. This is first playthru all down. Next step, put into PHP to combine and print it out, or learn how to program in JS, would be good for this. To have the bars saved as x and y axis, b = C E F# Bb, and then to play thru b, b, etc.