I have never seen anything like that, but it sounds like a wonderful learning experience and lots of fun. A great opportunity and wonderful that you are taking advantage of it.
This should be more common. In fact in the current print issue of The Harp Column in the interview with Skaila Kanga she makes a point of how new harp students at the Royal Academy of Music typically lack the same ensemble experience that most of the other students have due to lack of opportunity for it, and that they make a focused effort to get the harp students up to speed in that area.
This seems like the perfect kind of first step for a student for getting that kind of experience and would be great to see more of.