"Dark Crystal" Mystics' Chord

My friend Eddy reminded me that this year marks the 40th anniversary of the release of the dark fantasy cult classic, "Dark Crystal" (released December 13, 1982). 

The animatronic film (animatronic refers to mechanical puppets, a style deeply associated with Jim Henson & Frank Oz, who directed the film, as well as other productions like "The Muppet Show" and "The Labyrinth") was scored by none other than famed composer Trevor Jones, who is known for his work on movies like "Time Bandits", "Angel Heart", "GI Jane", "Dark City", and more, including BAFTA & Golden Globe nominations for "Mississippi Burning", "Last of the Mohicans", and "The Mighty".

Of interest today, however, is not the entire score or a critique of the film (though I'd rate both a solid "A"), but to briefly examine a particular scene with characters known as "The Mystics" (formally, the urRu).