Logical Music explores the relationship between image and music in the work of Tom Johnson (Colorado, USA, 1939), a musician and composer who has tirelessly explored to broaden the boundaries of the arts and pave new paths. With a career spanning over five decades, he is the author of a musical oeuvre that transcends the strictly auditory, delving into the realms of the visual, verbal, and mathematical. The exhibition includes unpublished drawings from his Imaginary Music series (1974), alongside a selection of drawings from the Kirkman's Ladies series, where mathematics and musical composition define the visual work.