FM0758. According to the query on the FM radio official website, the FM number of the radio station Sound of Music FM is 0758. FM is the abbreviation of FM radio. It is a radio that uses frequency modulation to broadcast. Users only need to extend the antenna into the room to hear the beautiful voice of the radio announcer. In April 2015, Norway announced that it will broadcast in 2017. By completely shutting down FM radio, Norway will become the first country in the world to fully switch to digital radio.