Creating a pull-down list with Tkinter

[Ben Gertzfield]

After reading through the meagre documentation available for Tkinter,
I've stumped myself. Is there any module available that will give
me a pull-down list, similar to what appears in tkFileDialog, or
any of the zillions of pull-down lists you see on web pages?

I'm trying to make a graphical front-end to my ID3 MP3 info tag
manipulator Python class, but Listbox is inappropriate when there
are ~150 selections possible for one of the fields (the genre
of the song) and I need to let the user select from one of them.

How can I create a pull-down list with Tkinter?

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