He has recorded more than 2000 recordings of the sounds of the natural world . More than 50 % of his archive comes from places that no longer exist in the same form . Hence the term ' biophony ' for the organized musical soundscapes of nature .
Krause has recorded more than 4,500 hours of the sounds of the natural world . More than 50 % of his archive comes from places that no longer exist in the same form . Coined the term 'biophony ' for the organized musical soundscapes of nature .