He then left for Belgium in 1895 and enrolled at the Conservatoire de Liège, with the famous violinist César Thomson, who taught him the art of violin and especially that of the string quartet.

Alfred Pochon in 1890 was already in the ranks of violinists in the orchestra of "Classical Concerts" in Geneva, led by Hugo de Senger.

It also takes the first violin in the orchestra desk Eugène Ysaÿe, founded and directed by the latter in Brussels.

In 1903 Pochon founded, with the financial support of his friend the banker Edward J. de Coppet, the Flonzaley Quartet in Manhattan, New York City.

Alfred Pochon died, after a long illness, on 26 February 1959 on his property in Lutry, Switzerland.