/vr/ - Retro Games

So I want to play Miracle Piano on my NES and have a flash cart to do so, but I'm wondering if it is possible for me to use my piano I already own that supports Midi out via USB? I'd rather not have to buy the official keyboard if I don't have to, but I'm just curious as to how I would go about it otherwise. I was successfully able to emulate it using the same piano on a PC, but the emulator plus the HDTV caused too much input lag to hit the notes with proper timing. That issue is even further worse due to the fact that the TV outputs the metronome which is then out of sync with the keyboard audio. I have a CRT I could play on, but getting my PC to output something it could use would be a pain in the ass. Any suggestions?

So I found a miracle piano for $9 at the thrift store today (this picture is not the one I have). I still had the NES cartridge and adapter cable from when I was a kid, but unfortunately this piano I picked up has no printed inlay over the function buttons-- I'm pretty sure most people wouldn't even recognize it just seeing it at a glance, but I did.

Does anyone have any recommendations for getting a replacement inlay? I checked eBay but no dice. I know a site that does custom arcade machine control overlays with polycarbonate laminate, but I'd need a high quality image of the inlay before I could even consider printing up a replacement, or at least something I can use for reference to design a replacement.