John’s University in New York. She specializes in 19th and 20th century U. S. history, American technology and culture, and sound studies. She is the author of, Chasing Sound: Technology, Culture, and the Art of Studio Recording in America (forthcoming), which explores the interplay between technology, music, and engineering from the birth of the American recording industry through the 1970s. Susan is also a former musician and amateur recordist who played with the 1970s rock band, Chi-Pig, and performs with The Email Special, a jazz group comprised of fellow historians of technology and science who play once a year after their annual conference.