1839-1881 1914-1918 1917- 1917-2013 19thcentury 20thcentury artistic folkmusic history historyandcriticism influence influence(literary libretto mexico modestpetrovich moguchai͡akuchka(groupofcomposers) music musicandglobalization musicandliterature musicandtherevolution musicandthewar mussorgsky politicalaspects popularmusic robert russia socialaspects songsandmusic spain swedish ward worldwar worldwar(1914-1918)