1995
Tanenbaum, Susie J. Underground Harmonies: Music and Politics in the Subways of New York.
Ithica, Cornell University Press, 1995.

Susie J. Tanenbaum’s 
Underground Harmonies: Music and Politics in the Subways of New York
 (Cornell University Press, 1995) is a sociopolitical study of the "Music Under New York" (MUNY) program and the legal and cultural battles surrounding street performance in the New York City subway system.