From Wikipedia, the free encyclopedia. Jorge Maronna is an Argentine multi-instrumentalist, composer, singer, author and a founding member of the comedy-musical group Les Luthiers. Born August 1, 1948, in Bahía Blanca, he joined I Musicisti while still a teenager, and helped Gerardo Masana and Carlos Iraldi build the first informal instrument, the "contrachitarrone da gamba". In 1967, he was part of the four people who left I Musicisti and formed Les Luthiers. There, he and Masana composed most of the music for early shows, and to this day Maronna still pens many musical pieces for the group, often in collaboration with one of his bandmates. Description above from the Wikipedia article Jorge Maronna, licensed under CC-BY-SA, full list of contributors on Wikipedia.