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 (Mendelssohn) più mosso, which is replaced first by Più Presto, then Allegro di molto, in copyist's manuscript. <nowiki>***</nowiki> Composer used Molto Allegro in autograph, it was replaced by Presto in copyist's manuscript. Though Mendelssohn was still a teenager when he wrote this quartet, he was already an experienced composer of chamber music. He had already written the string quintet opus 18, the octet for strings opus 20, and three piano quartets, besides several youthful string quartets which remained unpublished. He had a few months before produced his opera "Die Hochzeit des Camacho", which was not a success. (His quartet Opus 12,