Regarding this piece, Ginastera described it as a "poetic nocturne inspired by the Pampas." It features rhythms reminiscent of samba, scale patterns identical to the open strings of a guitar, and also scale patterns with shifted pitches derived from them. It is a fantastical work, evoking the sound of a gaucho's guitar echoing across the silent Pampas enveloped in the stillness of night.