17-19 are introductory to kakete (20), as the arm-bands are set to the arms of the sea-god (or arm-bands to those who serve the god?), to my heart is set regret for Yamato. The m. k. (9) applies to Ta(yuhi); 17, 18 are epithetical of tama, part of the m. k. tamatasuki applied to kakete (20).
21 shimane is a designation of Yamato.
For isanatori, masurawono, kusamakura, and tamatasuki see List m. k.
41
Akahito ga Kasuga nu ni noborite yomeru uta hitotsu.
Haruhiwo 1
Kasuka no yama no
takakurano
Mikasa no yama ni
asa sarazu 5