Imants Kalniņš
 Imants Kalniņš (born 26 May 1941 in Riga Latvia) is one of the most important composers in the history of Latvian music. Having studied classical as well as choral music he has written six symphonies several operas (including the first rock opera in the USSR Ei jūs tur! (Hey you there!)) oratorios cantatas choir songs a lot of movie and theater music.