New idea of the week is a new musical instrument. I was considering how synthesizers tended to suffer due to a lack of expression and came up with a truly three dimensional keyboard that allowed control over pitch on the x axis, like a piano, volume vertically on the z axis, and filter on the y axis. The flexible membrane could be slid left to right to shift pitch, slid up and down to shift filter or pushed harder in to make it louder. A guide beneath the membrane, or perhaps projected onto it, could show the notes for accurate playing. I call it a membraphone after the flexible membrane that is played.