Here are the full kajiuran chorus lyrics of Sweet Song... Although I am still not sure about some parts. For example in the last line of the 1st stanza they seem singing halam instead of halami (same for 2 last lines of the 7th stanza), also the "asobadi" can be "sasobadi". finally, the 5th stanza seems to be longer than it is, I just cant get the rest of it right now.
dolsa laiya dolsa laiya
dolsa lasobadi dolsa laiya
halami asobadi, halami asobadi, halami asobadi, halami asobadi
halami laiya dolsa laiya
samaridiya imiradiya, iradiya imerta
i..imiradiya, iradiya imerta
halami asobadi, halami asobadi, halami asobadi, halami asobadi
halami laiya dolsa laiya
istor idiya amerta iramerta soleemii
kamariye edi.. samaremita eme
dolsa laiya, dolsa laiya
dolsa lasobadi, dolsa laiya
halami asobadi, halami asobadi, halami asobadi, halami asobadi
halami laiya, dolsa laiya
halami laiya, dolsa laiya
araimerta araimerta
aa...