Betsuri is comprised of two volumes: the first collection entitled 'Umi no Koe' and the second collection entitled 'Hitori Utaeru' collectively consisting of 1004 poems including some new works.
第1歌集「海の声」、第2歌集「独り歌へる」に新作を加えた1004首で、上下巻に分かれる。