In 1890, Busoni published his first edition of Bach works: the two- and three-part "Inventions". In the same year he won the prize for composition, with his "Konzertstück" ("Concert Piece") for piano and orchestra, Op. 31a (BV 236), at the first Anton Rubinstein Competition, initiated by Anton Rubinstein himself at the St. Petersburg Conservatory. As a consequence he was invited to visit and teach at the Moscow Conservatoire. Gerda joined him in Moscow where they promptly married. His first concert in Moscow, when he performed Beethoven's "Emperor" Concerto, was warmly received. But living in Moscow did not suit the Busonis for both financial and professional reasons; he felt excluded by his nationalistically-inclined Russian colleagues. So when Busoni received an approach from William Steinway to teach at the New England Conservatory of Music in Boston, he was happy to take the opportunity, particularly since the conductor of the Boston Symphony Orchestra at that time was Arthur Nikisch, whom he had known since 1876 when they performed together at a concert in Vienna.