 However, it was not until six weeks after the Birmingham premiere and a second performance at the Gewandhaus in Leipzig, in early November, that Mendelssohn began actively to negotiate publication.He continued to work on the score through that month, delivering a final score to his publishers on December 12.The publisher sent Mendelssohn the proofs of the score on 11 May 1838, which the composer promised to return a copied version of shortly thereafter.