Tell us about yourself!
This looks great, I may have to give it a go some time. I have a whole load of old files I inherited. Is the steel used for making files particularly well-suited to this, after the heat treatments you describe?
To be honest, it doesn't really make much of a sound because the holes are relatively small compared to the pieces and so the walls are quite thick. It's not really a "chime" in that sense unfortunately.