an Entity references as follows:
August Bohlin (born 7 July 1877 Österlövsta; died 19 May 1949) was a nyckelharpa and fiddler from Uppland. He is known for developing the three-row nyckelharpa of today in 1929. August came from a musical family; his father Johan was a skilled nyckelharpist. Father and son produced three albums together in 1913 (Odeon 840, 845 and 847). On CD 2004 from www.tongang.se