I was just gifted with this!
After some initial not-so-great moves on the first attempt, progress on the keytar tie. One thing I noted: the design of the LilyPad places the pos and neg pins together, which doesn’t work well for designs where your components are in a small space. In this case, I am losing access to three or four pins. The LilyPad could be turned so the pos/neg is at the bottom, but then I would have a difficult time attaching the USB cable if I wanted to make code changes once the tie is sewn up.
The orange felt piece will go on the front, and the conductive fabric buttons will line up. I have black and white felt to add “keys.”