Definitions by Mykola Sioma

Sentence definition
Orpheus was a legendary musician, poet-magus who had mysterious powers over nature.
Extended definition
Orpheus was an ancient musician which possessed supernatural capabilities. The power of Orpheus extended beyond the creation of song to the building up of a world, because the sphere of his activity was governed by an identity of word and being[1]. Therefore to say and to create for him was the same. In one history about Orpheus is talked, that he was put to death by women who were in a trance: they cut off his head, but it continued to sing[2]. It is also known that there was a religious cult in antiquity which was related to the names of Orpheus and Pythagoras[3].
[1] Bruns G. L Poetry as Reality: The Orpheus Myth and its Modern Counterparts // ELH, Vol. 37, No. 2. (Jun., 1970) – P.264
[2] Мартин Уэст. Орфические поэмы // Пер. С англ. А.С. Кузнецовой и Е.В. Афонасина. – P.4. http://www.nsu.ru/classics/plato/West.pdf
[3] M. Owen Lee. Mystic Orpheus: Another Note on the Three-Figure Reliefs // Hesperia, Vol. 33, No. 4. (Oct. - Dec., 1964) – P.402