The music that composers make can be heard through several media; the most traditional way is to hear it live, in the presence of the musicians (or as one of the musicians), in an outdoor or indoor space such as an amphitheatre, concert hall, cabaret room or theatre. Since the 20th century, live music can also be broadcast over the radio, television or the Internet, or recorded and listened to on a CD player or Mp3 player.
Some musical styles focus on producing a sound for a performance, while others focus on producing a recording that mixes together sounds that were never played "live." Recording, even of essentially live styles such as rock, often uses the ability to edit and splice to produce recordings that may be considered "better" than the actual performance.