This chapter makes some general remarks on the interaction between music and visual arts by discussing if – and in what way – an explicit reference to a visual dimension can shape the form and structure of a musical work. When a hidden order is discovered behind seemingly meaningless events, in fact, time and space answer one another, speaking languages that have at last been reconciled and suddenly become one. As far as music is concerned, not only does it set itself in a real space, but it also holds the power to "evoke" an imaginary space, shaping our manner of experiencing temporality. And it is precisely through this apparently impossible challenge that of listening to space through time that the visual arts have been able to leave a tangible mark of their presence in the Italian symphonic tradition of the early twentieth century.