Thư viện Đề thi - Trắc nghiệm - Tài liệu học tập Miễn phíAs movie theaters grew in number and importance, a violinist, and perhaps a cellist,would be added to the pianist in certain cases, and in the larger movie theaters smallorchestras were formed. For a number of years the selection of music for each filmprogram rested entirely in the hands of the conductor or leader of the orchestra, and veryoften the principal qualification for holding such a position was not skill or taste so muchas the ownership of a large personal library of musical pieces. Since the conductorseldom saw the films until the night before they were to be shown (if, indeed, theconductor was lucky enough to see them then), the musical arrangement was normallyimprovised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishingsuggestions for musical accompaniments. In 1909, for example, the Edison Companybegan issuing with their films such indications of mood as "pleasant, "sad", "lively". Thesuggestions became more explicit, and so emerged the musical cue sheet containingindications of mood, the titles of suitable pieces of music, and precise directions to showwhere one piece led into the next. Certain films had music especiallycomposedforthem. The most famous of these early special scores was that composed and arranged forD.W. Griffith's film Birth of a Nation, which was released in 1915.