He wrote Towards a Conception of Musical Experimentation.
With Piero Simondo, Elena Verrone, Michèle Bernstein, Guy Debord, Giuseppe Pinot Gallizio and Asger Jorn, Olmo founded the Situationist International on July 28 1957. Following a row with Debord, the Italian Section consisting of Olmo, Simondo and Verrone was expelled in January 1958.
During the eighties he was a lecturer at the Licinio Refice Conservatory Frosinone.