Digitalization of the Okinawan and Amamease Folksong Recordings and a Historical Study on its Change

本研究的目的是将已故东京艺术大学教授小泉文雄从20世纪60年代至80年代收集的冲绳和阿美民歌的录音带进行数字化保存，为音乐档案的建立做好环境准备，并试图通过民歌为历史研究找到一条新的途径。在四年的研究期内，我们完成了约1300盘盒式磁带的数字化，并集成到一个硬盘中。在视觉素材方面，我们完成了从老式的27卷卷轴到DVD标准光盘的转换。为了搜索所有文档的数据，我们为每种记录介质创建了一个注册表。在部分资料的基础上，我们尝试对冲绳民歌进行历史研究。因此，在这30年里，即使是在同一个村庄，也有一些曲子没有被继承，在演奏被继承的歌曲时，可以观察到节奏变得很慢，音高变低的趋势。

The aims of this study are to digitize the tape recordings of Okinawa and Amami folk song for preservation, which late Koizumi Fumio, a professor of Tokyo University of the Arts has collected from the 1960's to the 1980s, to prepare the environment for a musical archive, and to try to find a new way for the historical study through the folk songs. Four years of the study period, we completed the digitization of about 1300 cassette tapes, and integrated into one hard disk. For visual materials, we completed to convert from old-fashioned 27 winding reels to disks of DVD standard. To search for data of all the documents, we have created a register of each medium of recordings. Based on a part of the materials, we tried to historical study of Okinawan folk song. As a result, during these 30 years, a number of pieces has not been inherited even in the same village, in the performance of the songs that are inherited, it is observed that there is a tendency that the tempo has become very slow and the pitch has become lower.