Listen to Sadko: Introduction "The Blue Ocean Sea" online. Sadko: Introduction "The Blue Ocean Sea" is an Instrumental language song and is sung by Nikolai Golovanov, Bolshoi Theatre Orchestra and Bolshoi Theatre Orchestra. Sadko: Introduction "The Blue Ocean Sea", from the album Bolshoi. The Best of Melodiya, was released in the year 2013. The duration of the song is 2:14. Download Instrumental songs online from JioSaavn.