Thomas Baltzar (c. 1620–1683) was a significant figure in the Baroque music era, primarily known as a violinist and composer. Born in Germany, he later moved to England, where he became associated with the royal court and was a prominent musician in London. His works are characterized by their intricate violin techniques and expressive melodies, reflecting the evolving styles of the time. Baltzar's notable works include "Sonatas for Violin and Basso Continuo," which showcase his virtuosity and innovative use of the violin. His compositions contributed to the development of the sonata form and influenced subsequent generations of composers and violinists. His impact on music is particularly evident in the way he bridged the German and English musical styles, helping to integrate continental Baroque practices into English music. Baltzar is also recognized for his role in the early establishment of violin playing as a respected and virtuosic art form. Despite the limited visibility of his works today, his contributions to violin technique and composition remain a significant part of Baroque music history.