OneFinger is a graphical shell for linux where you compose CLI commands with the mouse. You only have to type them once; later you can select them
from a list. You also have a file browser to insert filenames without typing. It also features "narrowing".
When you burn CDs of MP3s (or any other "playable" files) you might want to play them without having to browse your CD. This small tray icon will read a descriptive file (which it can also create) from your CD and insert its contents in a popup menu, read