String quartet is often in Rondo form or Sonata rondo form, in the tonic key. Some quartets play together for many years in ensembles which may be named after the first violinist (e.g. the Takács Quartet), a composer (e.g. the Borodin Quartet) or a location (e.g. the Budapest Quartet). Well-known string quartets can be found in the list of string quartet ensembles. The early history of the string quartet is in many ways the history of Haydn's journey with the genre. Not that he composed the first quartet of all: before Haydn alighted on the genre there had been several spasmodic examples
String Quartet No. 2 (Enescu) String Quartet No. 2 (Enescu) String Quartet No. 2, Op. 22, No. 2, in G major, is a chamber-music work by the Romanian composer George Enescu, composed mainly between 1950 and 1951, though it has a lengthy pre-history and received a number of revisions in 1952 and possibly early 1953. The score is dedicated to the American pianist, composer, and arts patron, Elizabeth Sprague Coolidge. A performance of it lasts about 25 minutes. There are four undated preliminary sketches for the Second String Quartet, made by Enescu starting from about the time of completion of the First Quartet in 1920,