An advertisement for these concerts announced that "the girl" would play "the most difficult pieces by the greatest masters", while "the boy" would play a concerto on the violin and also repeat his Vienna trick of playing with the keyboard completely covered by a cloth.
Un anuncio destes concertos aseguraba que «a rapaza» tocaría «as pezas máis difíciles dos principais maestros», mentres que «o rapaz» daría un concerto co violín e tamén repetiría o seu truco realizado en Viena anteriormente no que tocou o teclado completamente cuberto por un pano.