Mentioned for the first time in the pages of the Pirelli magazine in December 1971, La Sequenza was made in 1981 for the great retrospective at the Forte del Belvedere (Florence). After the restoration in 1991 for an exhibition at Villa Arconati in Bollate (Milan), in 2010 the sculpture was donated by the Fausto Melotti Foundation and placed at the entrance to the outdoor garden of Pirelli HangarBicocca, to welcome the visitor as a symbolic threshold, moment of passage to contemporary art through the cultural heritage of a great master of the recent past. The work - a composition of identical modules made up of three levels of depth according to an alternation of lines, solids and voids that makes it impossible to grasp it with a single glance - represents the culmination of the artist's research, of an anti-modern sculpture -celebrative and anti-monumental. In The Sequence it is possible to find the themes dear to Melotti: the theatrical space that can be traveled through in depth, given by the different wings that open one after the other; the concept of modulation - a rational element that arises from the rhythm and study of proportions - as opposed to that of modeling - a subjective and irrational element typical of traditional sculptures; that of theme and variations - a musical element par excellence - which arises from the alternation of positive and negative volumes; finally, the architectural element given by the size of the sculpture and the rhythm of the Corten slabs that appear almost like columns of a classical or rationalist construction.