These melodious folk songs are generally ______ to Smith, a very important musician of the century.
 
【正确答案】 D
【答案解析】 动词词义辨析。devote“投身于,献身”;contribute“捐助,捐献”;compose“写,创作;平静,镇静”;ascribe“归因于,归咎于”。根据句意,这些富于韵律的民歌应该是“归因于”Smith。故答案为D。