Stefan Geller (1813-1888) was an outstanding Hungarian Romantic composer of Jewish origin, a talented pianist and teacher.
He wrote his 25 melodic études for piano in 1844. They are intended for intermediate students and serve as an introduction to the revised edition of L'art de phraser, Op. 16. The set of 25 melodic études is listed in the catalog as Op. 45 and was revised in 1888 (with formal revisions).