Music raio is a radio format where music is the primary source of broadcast content on both commercial and non-commercial stations. After the rise of television brought about the decline of old time radio and its dramatic content, music formats became one of the dominant forms of radio in many countries, though radio drama and comedy continues, often on public radio. Music has been one of the driving factors in the advancement of radio technology, from the adoption of wide-band FM to the current upswing in digital media.