Edison, Thomas. (1847–1931) Mood Music: A compilation of the 112 Edison Re-Creations according to "what they will do for you." Based on psychological experiments conducted under the direction of Dr. W.V. Bingham8vo (23 cm), stapled pamphlet. 31 pp. Pages loose, wrappers almost completely separated from spine, scattered staining to wrappers, otherwise fine. Rare. Worldcat records only four copies. In 1920 Thomas Edison joined forces with Dr. W. V. Bingham, Director of the Department of Applied Psychology at the Carnegie Institute of Psychology to investigate the mental effects of recorded music upon listeners. The result, in 1921, was a unique ad campaign