Morrison calls all four "more 'caprice' than 'waltz'", and comments that they combine and develop the scintillating style of Chopin and Saint-Saëns waltzes.
Morrison opina que os catro son «máis "caprichos" que "valses"» e suxire que combinan e desenvolven o estilo chispeante dos valses de Chopin e Saint-Saëns.