ASTANA. KAZINFORM Kazakh soprano, the Astana Opera International Opera Academy graduate Guldana Aldadossova, was invited to perform at the Moscow Academic Stanislavsky and Nemirovich-Danchenko Music Theatre and at the Tchaikovsky Concert Hall. The promising young singer, winner of around 20 international competitions, shared in her interview how to show your worth in today’s music world, Kazinform reports.