Question: What Russian folk tale was the basis for the theatrical work that was the first recording of the chamber ensemble Chicago Pro Musica?

 Yeh is the founder and director of the chamber ensemble, Chicago Pro Musica, whose first recording, Stravinsky's "L'Histoire du soldat", won the 1985 Grammy Award for the Best New Classical Artist. John Bruce Yeh (born 1957) is an American clarinetist.  He has been the assistant principal clarinetist and E-flat clarinetist of the Chicago Symphony Orchestra since 1977. <SEP> Slowik first established his international reputation primarily as a cellist and viola da gamba player through his work with the Smithsonian Chamber Players, Castle Trio, Smithson String Quartet, Axelrod Quartet, and with Anner Bylsma’s L’Archibudelli.  Conductor of the Smithsonian Chamber Orchestra since 1988, he became conductor of the Santa Fe Bach Festival in 1998, and led the Santa Fe Pro Musica Chamber Orchestra from 1999 to 2004.  He has been a soloist and/or conductor with numerous other orchestras, including the National Symphony, the Baltimore, Vancouver, and Québec Symphonies, the Filharmonia Sudecka, the Pleven Philharmonic, and the Cleveland Orchestra.  His involvement with 20th-century art music included many seasons with Ralph Shapey’s Contemporary Chamber Players and founding membership in the Chicago Museum of Contemporary Art’s resident ensemble “Twittering Machine.” <SEP>  The piece was conceived by Igor Stravinsky and Swiss writer C. F. Ramuz based on a Russian folk tale ("The Runaway Soldier and the Devil") drawn from the collection of Alexander Afanasyev. L'Histoire du soldat (The Soldier's Tale) is a theatrical work "to be read, played, and danced" ("lue, jouée et dansée ") by three actors and one or several dancers, accompanied by a septet of instruments. <SEP> The Dmitri Pokrovsky Ensemble (Russian: ) was founded by Dmitri Pokrovsky (1944-1996) together with his wife and life-long partner, Tamara Smyslova, in Moscow in 1973 as an experimental singing group under folk Commission of the URSS Сomposers Union.The appearance of this team completely changed in modern society the understanding and view of folklore.  For the first time in this Ensemble came together scientific approach to the study of folklore and brilliant stage presentation of it.  Professional musicians belonging to the city culture had to master a large number very dissimilar styles of Russian village music.  The Pokrovsky Ensemble became the first professional groups who began to study the Russian folk music from authentic village musicians in numerous folklore expeditions.  Participants of Pokrovsky Ensemble has been recording, learning and then performing very different traditions, styles and manners of folk singing, playing and dancing, trying to penetrate the rules of its existence, understand the laws of its development.  Dmitri Pokrovsky was one of the first musicians who tried to bridge the gap between the old and new music.  The credo of The Pokrovsky Ensemble that Russian traditional folk music is a living treasure of Russian culture and is the basis for all classical and contemporary Russian music.  Pokrovsky Ensemble became the starting point in the search for new ways to stage implementation of folk music and marked the beginning of a Russian wave in the World music.