Ireneo Fuser was born in Carbonera (Treviso) on 12 November 1902. In 1925 he graduated in organ at the Liceo musicale «Benedetto Marcello» in Venice under the tuition of Oreste Ravanello and later specialized in Rome with Fernando Germani. In 1927 he graduated in piano at the Conservatory in Parma and, in 1935, in composition at the Conservatory in Florence. In 1928, he won the competition to succeed Ulisse Matthey as organist at the Sanctuary of Loreto, a position he did not hold, however. He undertook a brilliant concert career that was marked by a broad repertoire, refined recording skills, great virtuosity and musical sensitivity that made him one of the most important Italian organists of his generation.

From the1940s onwards, he has given organ recitals for Swiss radio and rai in live or recorded Sunday programms in Rome and Turin, which have been on the broadcast schedules for more than twenty years. At the same time, he carried out teaching activities first at the Licei musicali in Venice and Pescara and then in Bologna, where he was established in 1939 as an organ teacher at the Institute that three years later would become the Conservatorio «G. B. Martini». A firm believer in the phonic excellence of the ancient Italian organ, he shaped his activity with the noble aim of enhancing the glorious period of Italian musical art of the past; among his countless musicological works, the anthology «Classici italiani dell’organo» (1955) is still considered a reference work today.