Celebrating its 75th birthday this year, Estonian National Male Choir (also known as RAM) was established by Estonian choral music legend, conductor and composer Gustav Ernesaks. Having sung mostly a cappella during its early years, RAM has grown into a world-famous professional choir that often performs large symphonic compositions.Estonian National Male Choir frequently records for Estonian National Broadcasting and has collaborated with such labels as Deutsche Grammophon, Sony, Finlandia, Alba Records, GB Records Virgin Classics and Aurora. The program of the christmas concert "O magnum mysterium" includes:  Ødegaard. „Transeamus" Kaumann, Lauridsen, Bonato The program of the concert "Tenebrae" includes: Uusberg, Gesualdo