Question: The melody of "Baubles, Bangles & Beads" was based on works by a composer that belonged to what 19th century group?
Sentence (from "Baubles, Bangles, &amp; Beads"): The familiar AA'BA+Coda structure of the song is energized by a key change up a major third interval for every section; the transition is marked by a bracing harmonic progression from the central major key of one section to the tritone minor key of the following section.
Relevant evidence: No