Hi all, I recently bought a PX-350 for my daughter to learn to play the piano. I'm certainly not an expert in piano playing, but I am really impressed with the instrument's sound and capabilities. I hooked it up to my laptop, just using the USB port on the backside of the machine. Immediately I turned out to be able to both play midi files on my computer using the Casio as output device, as well as playing the Casio and recording the notes in midi format on my laptop (I use a freeware program called Sekaiju). What is missing is the instrument definition file (.ins) for the PX-350. For this, I set myself the task to create it. Attached is my first draft (please rename .txt file to .ins file, for some weird reason I'm not allowed to upload .ins files?!). With it, I am able to chose the tones in Sekaiju to be played on the Casio, both the GM as well as the Casio specific ones. Please feel free to try it, it may even be applicable to other Casio pianos (PX-780?). And be aware, it is work in progress, not even all drum kits have been entered yet. What I found very strange, is that Casio has chosen to group tones logically using group names and numbers (Appendix A-1), which are different from the MSB Bank numbers. In other words, to find a specific tone to use in your favorite midi program, you can't use the grouping as set on the instrument, but you always have to read the tone definition instead. Can someone elaborate on this, maybe I'm doing it the wrong way? Casio PX-350.txt Regards, Michiel