Introduction and Allegro, for string quartet and string orchestra, op. 47

Edward Elgar's Introduction and Allegro for Strings, Op. 47, was composed in 1905 for performance in an all-Elgar concert by the newly formed London Symphony Orchestra. It is a string concertante piece scored for string quartet and string orchestra, Elgar wrote it to show off the players' virtuosity. For its structure he drew on the 18th-century concerto grosso form.