musical accent meaning in Chinese

乐调重音

There was unobstructed admittance on that side also , and at the door sat my old friend nelly dean , sewing and singing a song ; which was often interrupted from within by harsh words of scorn and intolerance , uttered in far from musical accents
那边也是进出无阻，我的老朋友丁耐莉坐在门口，一边做针线，一边唱歌。她的歌声常常被里面的讥笑和放肆的粗野的话所干扰，那声音是很不合音乐节拍的。
Though mr . rivers had started at the first of those musical accents , as if a thunderbolt had split a cloud over his head , he stood yet , at the close of the sentence , in the same attitude in which the speaker had surprised him - his arm resting on the gate , his face directed towards the west
尽管里弗斯先生刚听到音乐般的声调时吃了一惊，仿佛一个霹雳在他头上撕裂了云层似的。但就是对方把话说完了，他还是保持着说话人惊吓了他时的姿势，胳膊靠在门上，脸朝西。