Tchaikovsky is said to have argued with a friend who wagered that the composer could not write a melody based on a one-octave scale in sequence. Tchaikovsky asked if it mattered whether the notes were in ascending or descending order and was assured it did not. This resulted in the Adagio from the , which, in the ballet, nearly always immediately follows the "Waltz of the Flowers". A story is also told that Tchaikovsky's sister Alexandra (9 January 1842 — 9 April 1891) had died shortly before he began composition of the ballet and that his sister's death influenced him to compose a melancholy, descending scale melody for the adagio of the Grand Pas de Deux. However, it is more naturally perceived as a dreams-come-true theme because of another celebrated scale use, the ascending one in the "Barcarolle" from "The Seasons".