Frank Scherbaum, who is an expert on larynx-microphones, also have done interesting field recordings in the mountains of Georgia with this equipment. Frank gave as an introduction to Georgian Polyphonic Singing with both sound and video. It’s an amazing work that Frank has done and also the way it has been recorded, where you can separate each voice from each other to be able to listen and learn. This is very interesting input for Folk Song Lab.
Folk Song Lab 