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
Leonid Kreutzer Leonid Kreutzer Leonid Kreutzer (13 March 1884 in St. Petersburg – 30 October 1953 in Tokyo) was a classical pianist. Kreutzer was born in St. Petersburg into a German Jewish family. He studied composition under Alexander Glazunov and piano under Anna Yesipova. He was a highly influential piano teacher at the Berlin Academy of Music (Berliner Hochschule für Musik), together with Egon Petri. Amongst Kreutzer's students were Władysław Szpilman, Hans-Erich Riebensahm, Vladimir Horbowski, Karl-Ulrich Schnabel, Franz Osborn, Boris Berlin, Ignace Strasfogel and Grete Sultan. Leonid Kreutzer also gave musically and technically demanding solo recitals, mostly dedicated to specific composers or