[1] He studied piano under Signor Emanuel de Beaupuis and organ under John Millard Dunn[2] and was appointed his assistant organist and choirmaster of St. Peter's Cathedral sometime before 1896, when he himself was advertising for students.
W. S. Hopcraft appointed Otto as organist and choirmaster for St John's Church, Adelaide, with the aim of reorganising and training the choir into the traditional Anglican cathedral model.
[1] He taught piano and organ privately; a noted student was John Dempster, who would later follow him as organist at St.
[1] In November 1909 he and his wife left by the RMS Moldavia for Paris to undertake further vocal studies under Jean de Reszke.
Arthur Hermann Otto married Blanche Victoria Barnfield (1876 – 2 November 1950) at St Peter's Cathedral on 26 September 1900.