Since folk tunes commonly shared melodies, music alone does not identify the songs intended. For example, part of Variation 30 traces back to the melody of the Italian Bergamask dance, which not only gave rise to compositions by many musicians (such as Dieterich Buxtehude, under the title of La Capricciosa, for his thirty-two partite in G major, BuxWV 250), but is even sung to various words in regions such as Iceland today.
Since folk tunes commonly shared melodies, music alone does not identify! the songs intended. For example, part of Variation 30 traces back to the melody of the Italian Bergamask dance, which not only gave rise to composit,ions by many musicians (such as Dieterich Buxtehude, under the title of La Capricciosa, fo?r his thirty-two partite in G major, BuxWV 250), but is even sung to various words in regions such as Iceland today.