Kouta were also referred to as hauta up until 1920s, but later, these came to be clearly categorized into hauta, kouta, utazawa (popular ballad) and folk song.
1920年代までは小唄も端唄の名で呼ばれていたが、その後端唄・小唄・うた沢・俗曲とはっきりと区別されるようになった。