In what sense can one speak of "modernities of troubadours", these lyrical poets of the first Middle Ages composers of pieces written in a superb language but now difficult to understand? They never cease to haunt the memory of poets, musicians, novelists, by the attraction of their love song born in the language of oc and which will mark the art of loving Europe for centuries. Modern, therefore, they are, by their stubborn presence as much as by the perfection of their art: fin'amor - perfect love, love of language and music. This book examines what the occitan troubadours have inspired to works of different artistic expressions, modern and contemporary. They sometimes find in the oldest something to nourish their renewal. The volume also questions the correspondence between what is said and what is said when the canso form is confronted with the test of transposition, rewriting, translation into another culture. How to undo the bond that surrounds the figures and themes of the lyrical love with their "measures" in the Occitan language? No doubt at the cost of a transcreation, pledge of the fertility of what is only badly held for past.