Website URL: http://www.rhythmmeterworkshop.com
The expectation of a new subscriber is to be taken back to the main website immediately after signing up for a paid membership.
The fact that the Membership Plugin directs them to the WordPress Account back-end is very confusing. Frustrating, if they have difficulty navigating to the site from this WordPress account page. (the Visit Site link is at the top and could very well escape their notice)
For a non-techie or even for a technical person with standard UI expectations, they may feel a sense of frustration, especially after paying money and committing to a monthly charge.
Please tell me that this is an easy fix. User experience is EVERYTHING.