Thanks, Arlex! I can see how difficult it is to pull out the descriptive text when looking at the contact of the database field storing the post. The post text (the actual verbiage) is preceded with:
<div class="ebd-block is-nested" data-type="text" >
But, as I can see from your post, so does the first text block which contains the show date. I love the Composer, by the way, because it made it VERY easy for me to set up an easy entry tool for my clients to maintain a consistent look in their blog entries. Perhaps there could be another BLOCK type added, one that indicates that block contains the main blog content? That block could contain a different class or type than the other text blocks, which could then easily be searched for when creating the meta descriptions. Just a thought...
In any case, thank you for the outstanding help!!
Rick