Le Mystère Des Voix Bulgares has been played over 40 times on NTS, first on 18 November 2012. Le Mystère Des Voix Bulgares's music has been featured on 37 episodes.

Le Mystère des Voix Bulgares (aka Les Voix Bulgares, The Mystery of Bulgarian Voices, Voix Bulgares - plus, formerly, Bulgarian State Radio and Television Female Vocal Choir & Bulgarian State Television Female Vocal Choir, Мистерията на българските гласове), is an all-female choir, formed in 1952. This naming is taken from the title of 1975 record, produced by Marcel Cellier - "Le Mystère des Voix Bulgares, Volume 1" - in which they featured, along with other…