While organs had been built in the United States since the eighteenth century, until the middle of the nineteenth century what passed as an ‘organ concert’ consisted of a mélange of transcriptions from choral music and simple improvisations, interspersed with choral music and vocal solos. As larger organs began to appear by the middle of the nineteenth century, solo organ recitals by players such as George W. Morgan were occasionally performed. In the 1850s Americans such as Dudley Buck and John K. Paine travelled to Germany to study organ performance and composition, and others followed. The opening of a large organ in Boston's Music Hall in 1863 and the building of large churches in the post-war period gave impetus to public organ recitals, which along with compositions by Bach, Mendelssohn, Rinck and Batiste etc. usually included transcriptions from operas and orchestral works, and compositions by the performers. At first, the emphasis was on Germanic music, but as the second half of the century progressed and more organists were studying abroad, works by British and French composers began to appear. By the end of the century the emphasis had become strongly French, particularly after the concert tours of Parisian virtuoso Alexandre Guilmant, and America's first true concert organist, Clarence Eddy, began making tours to European countries. By this time many large organs had been built for concert halls, cathedrals, colleges, and urban churches, providing excellent venues for solo organ recitals as the twentieth century opened.