I'm doing dual LEDs for every row, so the selected row (the row the encoders are controlling) can be given an alternate color. Also I'm going to use a different color for every 1st of 4 LEDs, so the quarter notes are easily distinguishable. For example:
1 2 3 4 5 6 7 8
R/B O/G O/G O/G R/B O/G O/G O/G
Where R=Red B=Blue O=Orange and G=green Every line wil be red/orange, exept for the selected line, which will be blue/green. This can also be done with bicolor LEDs, but underneath the Icecaps this is just as easy, and I can choose any color combination (bicolor LEDs are not too common, or expensive). I'm not afraid these "Christmastree" colors are going to ruin the looks. Ergonomics and clarity are my main goals, looks are second, but nonetheless quite important too :) Cheers, Alex.