Demi-glace warm. At this point, the espagnole is prepared, and when it is finished, the brown stock is added in equal portions to the espagnole. Demi-glace keeps very well, about six months refrigerated or almost indefinitely frozen. Due to the considerable effort involved in making the traditional demi-glace, chefs commonly substitute a simple "jus lié" of veal stock or to create a simulated version, which the American cookbook author Julia Child referred to as a "semi-demi-glace"(i.e. sans espagnole sauce). However, even today, many chefs who prepare French "haute cuisine" use a demi-glace prepared in their own kitchen. Concentrates and mixes, mostly
Symphonie espagnole Symphonie espagnole The Symphonie espagnole in D minor, Op. 21, is a work for violin and orchestra by Édouard Lalo. The work was written in 1874 for violinist Pablo Sarasate, and premiered in Paris in February 1875. Although called a "Spanish Symphony" (see also Sinfonia concertante), it is considered a violin concerto by musicians today. The piece has Spanish motifs throughout, and launched a period when Spanish-themed music came into vogue. (Georges Bizet's opera "Carmen" premiered a month after the "Symphonie espagnole".) The "Symphonie espagnole" is one of Lalo's two most often played works, the other being his Cello Concerto.