Complex sentence: By the early 1980s, British journalists had largely abandoned "new wave" in favor of other terms such as "synthpop", and in 1983, the term of choice for the US music industry had become "new music".
Split into simpler sentences: By the early 1980s, British journalists had largely abandoned "new wave" in favor of other terms such as "synthpop". By 1983, the term of choice for the US music industry had become "new music".