To learn more about the scientific concepts behind the heartsongs demonstration, please visit the Heartsongs page on ReyLab. The actual heart rate data used in this project, as well as other complex physiologic signals, can be downloaded at the PhysioNet web site.

The original heart rate data and the algorithm for converting the data into music are provided by C-K Peng, Ph.D. and Ary L. Goldberger, M.D, at The Margret and H.A. Rey Laboratory for Nonlinear Dynamics in Physiology and Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School (reylab.bidmc.harvard.edu).