AR Rahman used Kyma (Harm Visser's physical model 'American Flute') controlled by the Haken Audio Continuum Fingerboard on the dignified and ethereal Acid Darbari, part of his sound track for Danny Boyles' new film, 127 hours. Get a taste of the music here on YouTube. The full soundtrack is available for download from iTunes and Amazon. Discussion(Descriptions, reviews, discussion):