This project involved over 40 researchers from Mongolia, Russia and PR of China, implemented research expeditions in 8 different regions and rural areas over a distance of 40 000 km of travel among the Mongol ethnic groups living in the territories of Mongolia, Russia and China; interviewed about 300 long song singers aged between 12 and 90, documented video recordings of over 170 hours and recorded over 500 long songs and version melodies.
As an outcome of the 5-years study, Dorjdagva compiled and published the book titled 'Mongolian Long Song and Its Inheritors' with an audio CD[2] by the support of the Ministry of Culture, Sports and Tourism and the IISNC.
Together with his friend, B.Battulga, proficient morin khuur musician, Dorjdagva started his experimentation on restoring the long song, intangible cultural heritage of Mongolia, in full length on the basis of original and complete lyrics and variants of long song melodies throughout the country.
[3] Mongolian Statehood Long Song is an album of 9 Mongolian aizam ("grande") long songs, including Ertnii saikhan ("Ancient Splendid"), Tumen Ekh ("Myriad's Leader"), Khuur Magnai ("Fiddle Leader"), Durtmal saikhan ("Iridescent Splendid"), Kherlengiin baraa ("Sight of Kherulen River"), Ikh Zambuutiviin naran ("Sun of Great Jambudvipa"), Asaryn undur ("Heavenly Noble"), Erkhem tur ("Statehood of Excellence") and Enkh mendiin bayar ("Celebration of Welfare").
[4] The songs in the album feature singing in full-length (direct audio recording without any pause, music arrangement nor engineering), complete lyrics, authentic Mongolian singing techniques, different singing styles of Central Khalkha or Eastern Mongolia and Western Mongolia as well as ancient melody of each song restored on the basis of his research of a dozen years as well as accompaniment of authentic traditional Morin khuur with leather-cover and horse-hair strings.