Carl Reinecke
In 1888 he was enrolled at the Music and Organist School in Oslo ("Musikkonservatoriet i Oslo"). Alnæs studied piano with Westye Waaler, organ with Peter Brynie Lindeman as well as harmony, counterpoint and composition with Iver Holter. In April 1892, after Alnæs had finished his studies in Oslo, he studied in Leipzig with Carl Reinecke and, after the première of his first symphony in 1896, in Berlin with Julius Ruthardt.