The Organ Sonata composed in 1891 is distinguished by its richly varied form. The 1st movement is entitled "Phantasie" and comprises an Andante amabile , followed by an Agitato in free sonata form. In the 2nd movement chorale-style passages alternate with fugal sections, and the 3rd movement begins with a free rhapsodic Introduction, followed by a fugue, archaically entitled "Ricercar".