Good day,
With over 20 years of experience in video production, editing, animation, I should give you good results of this.
Of course for a loop the end should merge into the start perfectly. I can do a large size as needed and give you smaller sizes as well if you need them.
This is basically we are talking about a video animation, but if may/may not be used as a background if you are using audio podcast, depending on the player you are using, assuming you are using a website.
This cost is for a video, so upon your contact I will create a demo for you, I can use any song or music clip to simulate the animation.
On the other hand, if you are podcasting on a web page, I may be able to build an application for you that provides live real time animation, but of course for an extra cost.
Please initiate a chat with me to discuss details.
Thanks and regards,