In February 1918 his girlfriend Irene Berozzi died and after the death of the girl the young Sartini began to paint following the lessons of his “masters” Alessandro Scorzoni and Flavio Bertelli.
[7] The podestà of Bologna personally chooses and approves the purchase of some of the works exhibited to enrich the municipal gallery of modern art at Villa Armandi Avogli [the current Villa delle Rose] and to encourage the work of local artists: by Flavio Bertelli the painting Solitudine (Solitude) is acquired; By Sartini, the painting Vecchia strada a Bazzano (Old street in Bazzano).
However, it is also necessary to recognize that he added his own personality to the school of the two great Bolognese painters, his style and that serene goodness that was in his character.His way of painting is characterized by light touches, round spots, which give a sense of form, without weighing it down with contours or accentuated masses.
In many of his works, in fact, everything appears to be intuited in its essence, as hinted at if not even reconstructed and humanized, through a light, never coldly descriptive image of things, where the viewer remains free to complete it and contemplate it with his own feeling.
Many of his paintings testify to this, including Bucato al sole from 1930, Paesaggio from 1931, owned by the Gallery of Modern Art in Bologna, Lungo il rio from 1935, and Tessitrice [Weaver] from 1940.