Sergi Jorda` holds a PhD in Computer Science and Digital Communication from the Pompeu Fabra University of Barcelona, where he teaches computer music, audio programming, HCI, and interactive media arts. As a luthier and improviser he likes to invent new digital musical instruments without forgetting to make music with them. His music has been released on various labels and compilations, he has composed for different instrumental setups and for films, but he prefers the immediacy and volatility of free improvisation. As a researcher, he has written many articles, books, given workshops and lectured though Europe, Asia and America. As a digital media creator, he has also worked extensively in performances and installations in collaboration with other artists. Sergi discovered the magic of computer programming while completing a Bachelor degree in Fundamental Physics in the early 1980s and immediately decided to give up free jazz and saxophone practice in order to become a computer music improviser. Since then he has pursued the complexity, delicacy and futility of real-time, multidimensional performer-instrument-interaction. During the 1990s he also conceived and developed many interactive installations and performances often collaborating with experimental artists such as La Fura dels Baus. He concluded the previous century by returning to both research and the academy, finally completing a PhD on real-time computer music interaction. Currently, he is best known as one of the /luthiers/ inventors of the reacTable, a tangible interface and a new musical instrument that has recently accomplished mass popularity after being integrated in Icelandic artist Björk’s new world Tour.