Here is the blog page: http://cantabilemusic.com/news/
And here is an individual post page, with the same dynamic template assigned: http://cantabilemusic.com/2012/01/new-releases-12302011/
As you can see there are multiple problems:
1) The blog page completely fails to respond to the assignment of the dynamic template. The single post page responds perfectly.
2) The post content runs under the sidebar [this is caused by a conflict with the woocommerce shortcode in the post; I asked about this problem in another thread. Since no one replied I decided to try eliminating the sidebar by moving it to a dynamic widget above the feed. Joke is on me apparently].
3) The blog page displays the posts twice. Or, to be more specific, it displays the total feed area twice. That is, if there were two posts, it would show 1-2, then 1-2 again. Three posts would show as 1-2-3, then 1-2-3 again.