Kara is a greek word that could be translated as head. In Kara II, the performer wears a brain-computer interface (BCI) in order to capture his EEG waves while performing. The information from these waves is sent to a computer, where it is processed in order to generate a real-time score. A closed-loop is formed between the musician’s mental activity and the music he generates. As he performs the real-time score generated by their EEG waves, more mental activity is generated, which in turn generates the next portion of the score, and so on. This loop continues for the whole piece, although the score generation algorithms vary along different sections of the musical discourse.
Rodrigo F. Cádiz is a composer, researcher and engineer. He studied composition and electrical engineering at the Pontificia Universidad Católica de Chile in Santiago and he obtained his Ph.D. in Music Technology from Northwestern University. His compositions, consisting of approximately 45 works, have been presented at several venues and festivals in Latin America, North America and Europe. His catalogue considers works for solo instruments, chamber music, symphonic and robot orchestras, visual music, computers, and new interfaces for musical expression, in particular brain-computer interfaces and the Arcontinuo, a new electronic musical instrument he has been working on with two more colleagues for the past 10 years. He has received several composition prizes and artistic grants both in Chile and the US. He has authored around 45 scientific publications in peer reviewed journals and international conferences. His areas of expertise include sonification, sound synthesis, audio digital processing, computer and electroacoustic music, composition, new interfaces for musical expression and the musical applications of complex systems. He has obtained research funds from Chilean governmental agencies, such as the National Fund for Scientific and Technological Development (Fondecyt) and the National Council of Culture and the Arts (CNCA). He recently received a Google Latin American Research Award (LARA) in the field of auditory graphs. Currently, Rodrigo is a composer in residence with the Stanford Laptop orchestra (SLOrk) at the Center for Computer-based Research in Music and Acoustics (CCRMA), and a Tinker Visiting Professor at the Center for Latin American Studies, Stanford University.