For the auricle € 12 CD by Borg Diem Groeneveld with a booklet in dutch, french, german and english 1. Overture - voice 2. Dutch landscape - voice and tanpura 3. Open your ears - ... Read more
In February 2015 recently published a compact method to teach overtone singing. It is a booklet of 32 pages with a CD with 54 practice examples: songs in overtones, sound ... Read more