I-m loving your synthesia software so far! (and of course my daughter who was the target audience in the fist place)
Theres is an interesting product that promises to light up leds in a strip that you paste over the piano keybord, while the software is playing MIDI files for you.
I found it at:http://www.wired.com/gadgetlab/2011/05/ ... u-to-play/
This product, I think, is for most of us that don't own a light-enabled-keyboard piano, such as the ones that synthesia already supports (great idea).
I know is may be too much to ask but, may be you could either research with the inventor of this product or partner with him in order to give support for this product as well.
That would be a great feature and would have me and other users buying this led strip.