One thing that I have experienced is that some of my kids have opened up to me more. They have talked with me about things that they may be struggling with in their lives and things that they don't even talk with their parents about. It may be just coincidence that this has happened after we have moved into a smaller room with a closed door, but I think it's related. I think they feel "safer" in this room and that it allows them to take more risks. Now, to an extent this happened in the bigger room, too, but not in the same ways (and not with the same students in this case). I think their experience here feels more personal for them (and for me) in a smaller space.
I also think that we are generally more focused than before because of how I have the instruments situated and because of the fact that it's a bit of a smaller room and has a closed door -- we are there for one main reason and that is to learn and experience sounds and music. When they walk into this room, they know this.
As far as the room size and resonating factor of the instrument, the size of the room doesn't affect the way the instrument resonates, but it affects the way the sound resonates and the way the room resonates. That is why some pianos are considered to be "too big" for certain households and certain rooms, and bigger pianos are generally considered to be better for bigger spaces. As far as the rest of the acoustics affecting student and teacher, I would say that they would, of course, similarly to how these things affect an audience's experience in a performance Hall.
I have kind of accepted that the environment we teach in does (or *can*) have an effect, so that is not really my question (though, for people who have never considered it, I guess it's a good one). My question is more along the lines of how the environment effects us. So, to bring it exactly back to this thread, I have been curious what people's experiences have been with room sizes and how it has seemed to effect the teaching/learning experience.
Thanks.