Esra Erkan: vocals Esra describes her true self as a singer, aside from the industrial engineer and various corporate hats she had been wearing. She studied classical voice, jazz history and ensemble with well-known artists and attended international jazz workshops to hone her skills. She is known for her bluesy and soulful tone where you can sense her influences of rock, blues and soul. She also loves harmonies, polyphonic sound and is a member of Johns Creek Chorale.   Copyright © , After Hours Jazz Ensemble.