The Musicology program includes historical musicology, ethnomusicology, and music theory. Application is made to one of these areas, although a student's work is rarely confined within them. Research and teaching focus on a wide range of topics, including music history in the West, non-Western musics and cultures, popular and urban musics, jazz, analytical methods, music cognition, music aesthetics, and the philosophy of music. The Musicology program is supported by a first-class library, the Gabe Wiener Music & Arts Library, located in Dodge Hall, as well as the extensive sound archives of the Center for Ethnomusicology. The department is home to the oldest and most prestigious journal edited by graduate students, Current Musicology. The program in Composition offers instruction in a variety of styles and media. The program is enhanced by its association with the renowned Columbia Computer Music Center, which includes state-of-the-art facilities for working in electroacoustic music. Columbia Composers, a student-directed organization, offers opportunities for public performances of compositions by professional ensembles in various New York concert facilities.