What's a good classical music/classical theory podcast?

I'm an amateur musician becoming interested in classical music, and I want to know what classical composers are doing in their work--for instance, what makes a Bach fugue distinctive. I found a podcast called The Music Professor's podcast that is exactly what I want, but the guy only made three, so I want more. Need podcasts so I can listen on the bus and stuff. Any suggestions?

you can google every thing on your mind & you `ll find what you want.
i like Tchaickovsky alot.