Undine n. : One of a class of fabled female water spirits who might receive a human soul by intermarrying with a mortal.

Example:
Where could I find Undine by Yui Makino music sheet?

Taxonomy
Undine, ballet, music, opera, choreographed, free encyclopedia, Undina, The Loves of Ondine, Undine geht, Jules Perrot, Sir Frederick Ashton, MV Undine, Sonata Undine, song, character, German mythology, literature, novella.

Defination from the web:
Undine, a Romantic sonata for flute and piano (in E-minor) by Carl Reinecke. Ondine, a movement of the piano piece ... Undine (ballet), music by Hans Werner Henze (1956–57), choreographed by Sir Frederick Ashton (see also another article on the same work: Ondine (Ashton) ...