Persian émigrés (Mamak Khadem, Ramin Torkian, Pejman Hadadi) and American compatriots who have molded a sound that combines Middle Eastern melodies and rhythmic structures with progressive Western concepts. Their music features exotic and sensuous traditionally-styled Persian soaring feamale vocals, Middle Eastern and African percussion, Persian tar, nylon string guitar (performed by Yussi), and a unusual quarter tone guitar that enables them to play the Persian modal scales that are unique to their music. Rooted in the Radif (the repertoire of classical Persian music), yet not restricted to the boundaries of tradition,

Pejman Hadadi an original member of Axiom of Choice is the finest Iranian percussionist living in the United States. He's a much sought after Persian tombak and daf player to accompany the rare masters of Traditional Persian Music. Daf, the traditional frame drum of Kurdish music, is played in a very unique way. Pejman Hadadi has toured North America with Hossein Alizadeh, Kayhan Kalhor, and Shahram Nazeri, and is the premier percussionist member of the Dastan Ensemble.