A woman named Terumi Narushima has developed designs for 3D printable flutes which have the ability to play microtonal sounds -- sounds which we typically are not used to hearing on other instruments. This allows for completely new sounds to be played, and customization can be utilized in developing each instrument on a one-to-one basis. 3D printing allows for minor to major changes to be made, creating unique sounds and custom instruments. Read and see more at: http://3dprint.com/71014/3d-printed-microtone-flutes/