Lorenzo Piemonti's 1979 acrylic on canvas, "Tre tempi, progressione," is a striking example of geometric abstraction, immediately captivating with its vibrant color palette and precise composition. The square format canvas is dominated by a brilliant yellow, which subtly shifts into a lighter yellow and then a warm orange at its core, creating a sense of depth through concentric squares. Diagonally traversing this luminous field are two prominent bands, forming a dynamic "X" at the center. The first band, extending from the top left to the bottom right, features a rich green, encapsulating a narrower red stripe, which in turn frames a sharp black line. The second band, mirroring this structure from the top right to the bottom left, employs a strong blue, containing an orange stripe, and finally, a black line. Each inner stripe culminates in a pointed, arrow-like form, imparting a sense of direction and controlled velocity. The title, "Tre tempi, progressione," or "Three times, progression," profoundly informs the viewing experience. Piemonti masterfully employs three distinct color layers within each diagonal band, alongside the three shades of yellow forming the background, to articulate a visual rhythm and a journey through space. The black lines, meeting with absolute precision at the painting's heart, act as focal points, drawing the eye into the intricate layering. This work exemplifies Piemonti's rigorous exploration of form, color, and optical perception, characteristic of his engagement with Concrete Art and Op Art principles. The flat application of paint and the sharp edges underscore the intellectual clarity and disciplined execution inherent in his practice. Collectors will appreciate "Tre tempi, progressione" for its exceptional clarity and its sophisticated interplay of optical effects. The painting’s energetic balance between static geometric forms and implied movement reflects a profound understanding of visual dynamics. It stands as a testament to Piemonti's ability to create compelling visual narratives using only the fundamental elements of line, shape, and color, offering a timeless aesthetic appeal that continues to resonate with contemporary sensibilities. This piece not only showcases a pivotal moment in Piemonti's career but also contributes significantly to the discourse of post war Italian abstraction.