Lambert Massart Lambert Massart Joseph Lambert Massart (19 July 1811 – 13 February 1892) was a Belgian violinist who has been credited with the origination of the systematic vibrato. He compiled "The Art of Working at Kreutzer's Etudes," a supplement that contains 412 fingerings and bowings taken from his time studying with Rodolphe Kreutzer. He was an excellent String quartet player who gave many delightful chamber concerts, having also played Beethoven's "Kreutzer Sonata" in A minor with Franz Liszt on 23 May 1843. Massart was born in Liège, and was taught music first by his father Joseph Marie and later by his
William Kreutzer Jr. William Kreutzer Jr. William J. Kreutzer Jr. (born 1969) is a former United States Army soldier who was convicted of killing one officer and wounding 18 other soldiers when he opened fire on a physical training formation on October 27, 1995 at Fort Bragg, North Carolina. Kreutzer was sentenced to death, but his sentence was later commuted to life in prison by the Army Court of Criminal Appeals in connection with concerns regarding mental illness. At trial, Kreutzer's high school vice principal Ms. Witczak testified that he was an "above average" student. He graduated from the University of Maryland. At