A few weeks ago at the Saronic Chamber Music Festival in Poros, Greece I heard Psappha, a work for solo percussion by Iannis Xenakis. The impact of this music, brilliantly realized by the virtuosic young Greek percussionist Alexandros Giovanos under the night sky of its native land, was quite literally stunning. I have since done a bit of reading about the piece, struggling without success to understand the complex mathematical processes that underlie it. One of many things I admire about Xenakis and his music is this: though his compositions were frequently the result of extremely complex formal and mathematical techniques the result is anything but aridly intellectual. His music is sensual, visceral and often overwhelming in its raw power. The man was truly a genius of modern music, and that night at the Syggrou Amphitheatre an unforgettable musical epiphany. Mπράβο Aλέξανδρο! Mπράβο Ξενάκη!