String quartet movements with a large-scale structure similar to that of a symphony: Substantial modifications to the typical structure were already achieved in Beethoven's later quartets, and despite some notable examples to the contrary, composers writing in the twentieth century increasingly abandoned this structure. Many other chamber groups can be seen as modifications of the string quartet: Further expansions have also been produced such as the String octet by Mendelssohn. Notably, Schoenberg included a soprano in the last two movements of his second string quartet, composed in 1908. This instrumentation of adding a voice is succeeded by Hindemith , Finzi, Respighi, Ginastera,
String Quartet (Elgar) by Adolph Brodsky, in honour of the promise Elgar had made years earlier to write a work for them. However, the members of the Brodsky Quartet were now around 70 years of age. The Quartet's public premiere was given by Albert Sammons and W. H. Reed, violins; Raymond Jeremy, viola; and Felix Salmond, cello on 21 May 1919, at the Wigmore Hall, London, the Piano Quintet in A minor also receiving its premiere on this occasion. The group was billed as the "British String Quartet". (Some sources say the London String Quartet gave the premiere, but Albert Sammons was the