I've generally found that it's a mistake to take upper level courses without first having the basics that you need. I've done this several times by accident (due to poorly explained pre-requisites, changes of plans, and programs that were revamped while I was going through them). Every time I ended up in a class where I almost but didn't quite have the prerequisites, I managed and did still get something out of it, but it was a struggle. I often found that for years later I was struggling to fill in the blanks due the classes I never had and also because of the fact that I didn't get the most out of the classes I took while not having the pre-requisites. I'd recommend holding off until you've got a solid background to take transsomatechnics because then you will understand it more fully and get the most out of it. This may matter, for instance, when it comes to passing your qualifying exam, if you have one, or just to later success in your field.