Swiss army knife of image processing
Img is a collection of format handlers for the Tk photo image type.
Doing 3D with Tcl
Music ear training exercises
netabc creates and renders html files with abc music notation
Ballroom Music Player
Runabc is a user interface supporting abc music notation software
Open Source Solid Modeling CAD
PyMOL is an OpenGL based molecular visualization system
Panda3d to Tcl bindings
A C extension to Tk that provides functionality to modify images
Metadata grabber
Bulk Downloader for selectable Images (even Google Images)
Tone generator GUI for tuning a concert zither
domes, vaults and eggs - program to create 3D models and plans