Cantus Firmus AD is a leading Bulgarian company in the field of organization of concerts and concert tours. It has been in business for 18 years, initially as part of Classic FM Radio before being established as a separate company in 2007. Cantus Firmus is the founder and organizer of many music events, concerts and concert tours of Bulgarian and international artists and orchestras. Among the most successful projects founded by Cantus Firmus are The European Music Festival, held annually since 2001 in Sofia, Varna, Rousse and Plovdiv, Sofia Jazz Peak, an international jazz festival held annually since 2002 in two editions – spring and autumn, The Classic FM Radio Orchestra, founded in 2002 initially under the name Classic FM Radio Youth Orchestra, designed to foster the artistic growth and development of young musicians in Bulgaria, The Concertmasters, an annual concert cycle launched in 2002, The first edition of the Gennady Rozhdestvensky International Conducting Competition in Sofia in 2006, The Music of America, an annual concert cycle launched in 2010.