Greece Sigma Radio OFFLINE LIVE Sigma Radio Country: Greece Genres : folkpop Sigma Radio is an internet radio station from Athens, Greece, providing Greek music. Sigma Radio reviews : No reviews added yet. Be the first to add a review for the station. Leave a review Set your rating: Your Review: Add Review You also may like Status Web Radio Country: Greece Genres : folkpoptop-40 Spam Radio Country: Greece Genres : newspoptalk Metro FM 97.8 Country: Alexandroupolis,East Macedonia and Thrace, Greece Genres : greekhitspoprock