Alexander Winterberger was a German organist and composer. He is mostly remembered for his association with Franz Liszt, in particular his close involvement with the two great organ fantasies Liszt wrote for the Merseburg Cathedral organ, the Fantasy and Fugue on the chorale "Ad nos ad salutarem undam" and the Fantasy and Fugue on the Theme B-A-C-H. Alexander Winterberger was born in 1834. He studied at Weimar with the Weimar Municipal Organist Johann Gottfried Töpfer (1791-1870). lthough he also studied under Franz Liszt until 1853, he was in the 'outer circle' of students, that is, not among those with whom Liszt spent most time and was on most intimate personal terms. He displayed a mastery of novel registrations, which in some cases Liszt and he worked out together. Winterberger had been a classmate of Julius Reubke in Berlin, and he was instrumental in Reubke deciding to come to Weimar to study with Liszt.