On April 30, 1868 he sang in a concert at the Beethoven Rooms in his native city performing under conductor Alberto Randegger who was Byron's principal music teacher.
[1] In 1870 Byron made his professional opera debut at the Gaiety Theatre, London as Lorenzo in Daniel Auber's Fra Diavolo with soprano Florence Lancia as Zerline.
He then toured as the tenor soloist in performances of George Frideric Handel's Messiah in a concert series organized by and featuring Randegger as conductor and Rudersdorff and her pupils.
In 1874 he performed Renzo in Amilcare Ponchielli's I promessi sposi at the Teatro Dal Verme in Milan; a role he repeated at opera houses in Novara and Fiume among other cities.
He then toured the United States with Max Strakosch and Clarence Hess's opera company; making his American debut in Boston in November 1880 with performances as Manrico, Radamès in Aida, Don José in Carmen, and the title role Faust.
He performed this same repertoire and also the part of Rossini's Arnoldo when the tour reached the New Orleans Opera House and later Broadway's Fifth Avenue Theatre and Philadelphia's Academy of Music among other stops.