[GNOME-India] How to customize the right-click pop-up in GNOME?

["Debarshi 'Rishi' Ray" <debarshi ray gmail com>]

I am working on a utility (GNU Songanizer -> http://www.gnu.org/software/songanizer/)
that provides diferent views of a collection of songs stored in the
user's HDD, based on various attributes. I would like to integrate it
with GNOME, so that whenever someone right-clicks on a directory
containing songs the pop-up window would have an option, similar to
'Create archive...', to invoke the songanizer script. Could any one
tell me how to achieve this?