[3] Togni was the eldest son of Anton Albertus Felix Simonius Togni and Anna Maria Hubertina de France, who lived in Koningsplein.
[5] His initial violin teacher was André van Riemsdijk (1848-1904), a graduate of the Liège Conservatory and student of virtuoso Hubert Léonard (1819-1890).
[6] Togni later studied with Richter, Kramer, Timmner and Willem Kes.
[8] Among his more notable students were Sem Dresden,[7] Gerard Boedijn,[9] Jan Felderhof,[10] Annie van den Brink-Pothuis,[11] Cor Kint, Joachim Röntgen, Nap de Klijn,[6] and Emmy Wegener.
[13] As an experienced violin teacher, Togni wrote a series of 3 books of scalic exercises and chordal method which were published by Messrs. Breitkopf & Härtel, Leipzig under the title The Development of the Left Hand (Die Ausbildung der Linken Hand).