Listen to Tchaikovsky: 50 Russian Folk Songs, TH 176: 27. Upon the Sea so Blue online. Tchaikovsky: 50 Russian Folk Songs, TH 176: 27. Upon the Sea so Blue is an Unknown language song and is sung by Valentina Lisitsa and Alexei Kuznetsoff. Tchaikovsky: 50 Russian Folk Songs, TH 176: 27. Upon the Sea so Blue, from the album World of Classical Music: Tchaikovsky, was released in the year 2022. The duration of the song is 0:56. Download Unknown songs online from JioSaavn.