The most direct way to recover the Taiwan aboriginal music during the Japanese Colonial Period is by approaching the recordings of that time. Among these historical recordings, Kurosawa Takatom's fieldwork collection may be the most famous and complete one. The linguists Kitasato Takeshi and Asai Erin also have quite a few recordings early than Kurosawa, which are still little-known and rarely researched. For this reason, this article aims to investigate the recordings collected by Kitasato and Asai-especially those regarding Tao and Falangaw Amis groups-which are restored by the Japanese research team. The first purpose is to recognize the content of these recordings through the assistance of native speakers and the related textual documents. Secondly, this article also tries to review the possibility of musical style changes of these two groups by comparing the sounds recorded over fifty years ago with the singing styles today.