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  2. Library classification - Wikipedia

    en.wikipedia.org/wiki/Library_classification

    Library classification. A library classification is a system used within a library to organize materials, including books, sound and video recordings, electronic materials, etc., both on shelves and in catalogs and indexes. Each item is typically assigned a call number, which identifies the location of the item within the system.

  3. Sheet music - Wikipedia

    en.wikipedia.org/wiki/Sheet_music

    Tibetan musical score from the 19th century. Sheet music is a handwritten or printed form of musical notation that uses musical symbols to indicate the pitches, rhythms, or chords of a song or instrumental musical piece. Like its analogs – printed books or pamphlets in English, Arabic, or other languages – the medium of sheet music ...

  4. Call and response (music) - Wikipedia

    en.wikipedia.org/wiki/Call_and_response_(music)

    In music, call and response is a compositional technique, often a succession of two distinct phrases that works like a conversation in music. One musician offers a phrase, and a second player answers with a direct commentary or response. The phrases can be vocal, instrumental, or both. [ 1 ]

  5. Opus number - Wikipedia

    en.wikipedia.org/wiki/Opus_number

    In music, the opus number is the "work number" that is assigned to a musical composition, or to a set of compositions, to indicate the chronological order of the composer's publication of that work. Opus numbers are used to distinguish among compositions with similar titles; the word is abbreviated as "Op." for a single work, or "Opp." when ...

  6. Library catalog - Wikipedia

    en.wikipedia.org/wiki/Library_catalog

    The call number on the card matched a number written on the spine of each book. [16] In 1860, Ezra Abbot began designing a card catalog that was easily accessible and secure for keeping the cards in order; he managed this by placing the cards on edge between two wooden blocks. He published his findings in the annual report of the library for ...

  7. Audiobook - Wikipedia

    en.wikipedia.org/wiki/Audiobook

    A small number of books are recorded for radio broadcast, usually in abridged form and sometimes serialized. Audiobooks may come as fully dramatized versions of the printed book, sometimes calling upon a complete cast, music, and sound effects. Effectively audio dramas, these audiobooks are known as full-cast audiobooks.

  8. Musical composition - Wikipedia

    en.wikipedia.org/wiki/Musical_composition

    Musical composition can refer to an original piece or work of music, [ 1] either vocal or instrumental, the structure of a musical piece or to the process of creating or writing a new piece of music. People who create new compositions are called composers. Composers of primarily songs are usually called songwriters; with songs, the person who ...

  9. Hitting the Books: What exactly did Jodi Foster hear in ...

    www.engadget.com/hitting-the-books-the-science...

    The opening sequence of Contact sets the scientific basis for the rest of the film. As the camera travels away from Earth, the audience hears a cacophony of sounds. These sounds, which are radio ...