Herman von Helmholz (1821-1894)

A German scientist and an expert on acoustics.  His "Lehre von den Tonempfindungen als physiologische Grundlage für die Theorie der Musik" (On the Sensations of Tone as a Physiological Basis for the Theory of Music, NY 1948), was first published in Braunschweig in 1863.  It laid the foundation for modern research in the physical and physiological aspects of musical sound and perception.  He based his work on experimentation but drew heavily upon the research of Rameau and Tartini.