Question: What song, originally composed by Pyotr Ilyich Tchaikovsky, was performed by Elizabeth de la Porte in South Africa? 
Sentence (from "Undina (Tchaikovsky)"): The libretto was written by Vladimir Sollogub, and is based on Vasily Zhukovsky's translation of Friedrich de la Motte Fouqué's "Ondine".
Relevant evidence: No