There's a Pride and Prejudice Musical

and it includes a song by Mrs. Bennet entitled..."My Poor Nerves." And yes'm, it's coming to Broadway. At some point.

I don't know what more needs be said!

Here is a link to the summary on the musical's website, and Austenblog's interview with the producer.
And if your curiosity is seriously piqued, hearken to a few songs:

• Lizzy's Song
• Not Romantic (a duet between Lizzy and Charlotte)
• Fine Eyes (Darcy waxes romantic)