Thank you so much, i was getting crazy trying to use alternative (OSCuino, but it's not working with Yun, and there is a udp2serial library alternative but i can't understand the setup procedure given).
Will definitely come back to let people know how it works for me, and if i can achieve it i'll try to get even just a short video of the final performance to post-it. The main performer was offered a "student carte blanche" in a great parisian theatre (Cité de la Musique) and wanted to explore his circus background with his piano playing (which is exactly what i usually personnaly do with guitar/viola and circus/dance)