Original: George Grigoriu (1927-1999) was the composer of The waves of Danube operetta; Nicolae Bretan (1887–1968) was a Romanian opera composer, also baritone, conductor and critic.
Simplified: George Grigoriu (1927-1999) was the composer of The Waves of the Danube operetta; Nicolae Bretan (1887–1968) was an Romanian opera composer, also baritone, conductor and critic.