Library of Congress summary

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Below is the article summary. For the full article, see Library of Congress.

Library of Congress, U.S. library, the largest and one of the greatest of what may be considered national libraries. Founded in Washington, D.C., in 1800, it was housed in the Capitol until the building was burned by British troops in 1814; it moved to permanent quarters in 1897. In addition to serving as a reference source for members of Congress and other government officers, it is outstanding among the learned institutions of the world, with magnificent collections of books, manuscripts, music, prints, and maps. It contains more than 35 million cataloged books and other print materials, more than 3 million audio materials, over 15 million visual materials, approximately 68 million manuscripts, and more than 5 million maps.

score summary

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Below is the article summary. For the full article, see score.

score, In music, the parts of all the instruments or singers of an ensemble notated with simultaneous sounds aligned vertically, on a system of parallel staffs arranged one above another. Polyphonic (multivoiced) music was being composed for some 600 years before the score came into regular use in the 16th–17th centuries. Early examples of scores exist for works of the Notre-Dame school, and early composers may have used temporary scores during composition, perhaps on chalkboards, from which the parts for individual singers were then copied.