Russolo calls for an infinite expansion of musical vocabulary and sensibility in coordination with that of industrial machinery—“We must enlarge and enrich more and more the domain of musical sounds”—envisioning a machine-based music that would dispense entirely with inherited forms. This publication made the text widely available in English for the first time. Also included is a description of the “First Concert of Futurist Noise Instruments” in Modena, Italy on June 2, 1913.