For those looking for additional learning resources, this evening I digitized and posted King Keyes's "Modern Method for Zither" on the web site. It can be downloaded from the following link. Enjoy!

http://www.zither.us/zither.learning

thank-you, Dave. Any instruction from the late King Keyes is worth studying/reviewing again. He was a wonderful teacher and a serious student of our difficult instrument. I'm looking forward to reading and learning from it.