Following the American Revolution, Philadelphia became especially renowned for musical development and was the home of the esteemed Alexander Reinagle, John Christopher Moller, Rayner Taylor and Susannah Haswell Rowson. Reinagle became the most influential figure in Philadelphia's musical life, organizing a number of concerts, organizations and musical events. Francis Hopkinson, a signer of the Declaration of Independence, was a notable composer of the period. One of his compositions, "My Days Have Been So Wondrous Free", is well-remembered as the first art song from the United States (though this is disputed); it is, however, lacking in originality and innovation to set it apart from European compositions.