(b Helsinki, 10 Nov. 1846; d Helsinki, 22 March 1906). Finnish composer. He studied in Helsinki, then at the Leipzig Conservatory and in Vienna. On his return to Finland he was active as a conductor and teacher and in 1882 founded the Helsinki Music Institute. He also wrote books on music and theory textbooks. His pupils included Erkki Melartin and Selim Palmgren, and he played an important part in Sibelius's musical development, though their relationship subsequently cooled to the extent that Wegelius, in the 1904 Finnish edition of his Outlines in the History of Western Music, allotted Sibelius derisorily little space.
From The Oxford Companion to Music in Oxford Reference.