Complex sentence: The term "kayōkyoku" originally referred to Western classical "lied" in Japan, but NHK radio began to use the term as another name of "ryūkōka" around 1927.
Split into simpler sentences: The term "kayōkyoku" originally referred to Western classical "lied" in Japan. However, NHK radio began to use the term as another name of "ryūkōka" around 1927.