Thanks to the community I was able to find some testing sweet spots and controls to get my workflow going nicely and outputting a very well controlled set of variations endlessly on my same "prompt" and "seed".

Get StableAudioSampler from github:
https://github.com/lksai/ComfyUISta...
... or download it from the ComfyUI Manager!

Here is this Workflow as Promised:
https://github.com/lksai/ComfyUISta...

Generate Rich Immersive Worlds with LoreKeeper:
https://chat.lorekeeper.com

OUTLINE:
0:00 Intro
1:07 Calculating the Loop BPM and length
1:43 Templating Output File names
2:20 How to get Endless Variations on the same Thing
3:30 Exploring Variations
4:33 The importance of the Sampler in this Workfow
5:39 What is Stable Audio Open Great For? (Exit Music)
6:40 Outro