Bulgarian musicologist, composer and folklore expert Nikolai Jankov Kaufmann was born in Ruse on 23 September 1925. He studied trumpet and music theory at the Bulgarian National Academy of Music in Sofia.
He worked at the Instute of Art Studies and then at the Institute of Folklore Studies at the Bulgarian Academy of Sciences.
His work includes more than 1,000 arrangements of Bulgarian and Jewish folk songs, and recordings of more than 30,000 Bulgarian folk songs and tunes. He wrote a series of books, published in Bulgarian.
Kaufmann died on 26 March 2018, aged ninety-two.