Patricia Causey's Musical Theater Talk on BlogTalkRadio looks at current issues relevant to the musical theater world. Her April 16 episode, Musical Theater vs. Opera - Double-dipping Between the Two is particularly interesting, with differing views on whether opera and musical theater styles are converging or moving apart. Running time is around 1 hour 30 minutes.
[Update: I've deleted the embedded BlogTalkRadio widget, which is set to play automatically and might end up becoming irritating after a while. Click on the link above for the program.]