The 1980s in music were perhaps best defined by the introduction of the synthesizer around 1980 - other than this, it could be said the 1980s continued the trends of the 1970s, especially in the world of rock music. The 1980s are also well-known for when the indie music scene formed out of punk rock, with bands like Sonic Youth and The Pixies deep in the underground and bands like the Talking Heads and The Smiths close to the mainstream. The 1980s were also a time of large communication between the scenes of the United States and the United Kingdom, as in the genre of New Wave music.