Vesa Kurkela (PhD, born in 1954) is professor of popular music studies at Sibelius Academy and University of Tampere. His research interests include history of popular music, social and economic history of music, music and media, music and ideology. He has written dozens of articles and five books of these topics, e.g. a history of Finnish popular music and a history of Finnish music publishing.Lauri Väkevä (PhD, born in 1965) is professor of music education at Sibelius Academy. His research interests cover philosophy of music education, African-American music, music education technology and music history. He has written several articles on these topics.