These are some great resource, not only for WordPress creators in Nashville, but everywhere.
Check out some great videos from WordPress WordCamp 2013 in Nashville:

http://wpnashville.com/blog/wordcamp-2013-panel-discussion-themes-theme-frameworks/

http://wpnashville.com/blog/wordcamp-2013-dnelle-dowis-intermediate-intro-to-wordpress-images-widgets-themes/

http://wpnashville.com/blog/wordcamp-2013-steve-wilkison-an-introduction-to-creating-custom-wordpress-themes/

http://wpnashville.com/blog/wordcamp-2013-judy-wilson-security-wordpress-org-self-installation/

*Search their site for more!