Sentence:  Because of the authentic homogeneity of his early Nationalistic materials , and his flair for <WSD>orchestrations</WSD> - his brilliant Petruchka , his savage Sacre du Printemps , his incisive Les Noces - the world kept hoping that he could recapture the historical direction for which his native talents were predisposed . 
Meaning of the word marked with <WSD> tags:  an arrangement of a piece of music for performance by an orchestra or band