These files are the plans for the "Radio Shack Music Maker" in my post on PopSci:

http://www.popsci.com/diy/article/2011-11/sponsored-post-radioshack-music-maker-diy-project

./CAD The Alibre 3D model for the enclosure.

./PCB The Express PCB files - schematic and board layout.

./images Just what you'd expect.

./parts Information for sourcing parts.

./schematic The schematic.