The introductory audio essay illuminates four aspects of sound in physical space—location, size, reverberation and environmental noise—with examples of how composers from across the spectrum of Western art music exploited these phenomena in their music. Acoustician Jürgen Meyer and musicologist Elaine Sisman show how the classical composer Joseph Haydn used space to create musical effects beyond the boundaries of melody, harmony, rhythm and dynamics. Credits, tracklists, and more: http://bit.ly/2CPjbc4