Abstract: A contact hearing device includes a chassis, sulcus platform and umbo platform wherein the chassis is formed as a single continuous material, the sulcus platform is formed as a single continuous material, and the umbo platform is formed as a single continuous material. The chassis may include a receiver mount, a motor mount pocket and a central frame. The sulcus platform includes one or more registration features adapted to mate with at least a portion of the chassis, the umbo platform includes a drive post landing pad, the drive post landing pad including at least one alignment feature.

Abstract: An improved apparatus for displaying sheet music is an electronic tablet having the ability to upload and download sheet music to the device as well as having the ability to provide a music composer with the tools to put the music easily and conveniently in printed form. Sound recognition allows the tablet to recognize audio sequences of music and locate the place in the electronic music sheets on the tablet to keep the proper location displayed for the user-performer, including automatically turning electronic pages during the playing of a piece of music.