37 are a set of two nocturnes for solo piano written by Frédéric Chopin in 1839 during the time of his stay with author George Sand in Majorca[1][2] and published in 1840.
"[10] Johnson also thought the chords to be "chorale-like" and commented that "some biographers have felt that this music represented Chopin's faith in the consoling power of religion.
It is written in the style of a Venetian barcarolle,[7] which, according to Dubal, is engendered by the main theme's "euphonious thirds and sixths".
[7] Frederick Niecks also thought the piece had "a beautiful sensuousness; it is luscious, soft, rounded, and not without a certain degree of languor.
"[1] Johnson also commented that "something of the warmer Mediterranean climate crept into the composer's pen," in reference to Chopin's stay on the island of Majorca.
[1] Niecks also said that the nocturne "bewitches and unmans," pointing to the formerly popular view that Chopin's music could act as an aphrodisiac.