Obsidian Quartet alto saxophonist Heidi Radtke Siberz would like to propose the French premiere performance of a recently composed work for alto saxophone and electronics entitled “Convergence” by Indiana, USA based composer Sang Mi Ahn. The 8 minute work was composed in collaboration with and dedicated to Heidi Radtke Siberz, who premiered the piece at Indiana University in 2011. It has since been performed at the 2013 the International Developments in ElectroAcoustics conference in Perth, Australia and has recently been performed by saxophonist Theofilos Sotiriades at The 3rd International Summer Music Academy (ISMA) in Kavala, Greece on July 19th, 2014. The work was also performed by saxophonist Steven Mauk after being awarded the Heckscher Composition Prize from Ithaca College.