Composition is a re-occurring word in the self commented prose by Giorgio Caproni with fundamental reference to how the work is a combined process of elements. This is the aspect that the essay tries to illustrate with the diachronic examination of the seventeenth Sonetti dell’anniversario (Il tuo nome che debole rossore), giving particular attention to two crucial moments of the formation. The order of the words in rhyme and the formation of the first verse.