Die schöne Müllerin, is a song cycle by Franz Schubert from 1823 based on 20 poems by Wilhelm Müller. It is the first of Schubert's two seminal cycles , and a pinnacle of Lied repertoire.

Otto Erich Deutsch was an Austrian musicologist. He is known for compiling the first comprehensive catalogue of Franz Schubert's compositions, first published in 1951 in English, with a revised edition published in 1978 in German. It is from this catalogue that the D numbers used to identify Schubert's works derive.