Early extensive examples of the double stop and string chords appear in Carlo Farina's Capriccio Stravagante from 1627, and in certain of the sonatas of Biagio Marini's Op.This technique is mainly used in music with great force, such as the cadenza-like solo at the beginning of the last movement of Tchaikovsky's violin concerto.Such a bow was conceived early in the 20th century by Arnold Schering and Albert Schweitzer and constructed by Rolf Schröder in 1933.[1] A similar device called the "Vega bow" was built in 1954 under the sponsorship of the violinist Emil Telmányi.In 1990, German cellist Michael Bach invented a curved bow for cello, violin, viola and bass.