classic waka stream

わび人の住むべき宿と見るなへに
嘆き加はる琴の音ぞする
Roma-ji

Wabibito no sumu beki yado to miru nae ni nageki kuwawaru koto no ne zo suru

English Translation
As I look upon it
as a house where one who grieves
would surely dwell,
from within there comes the sound
of a koto adding sorrow.
Meaning
Just as I was thinking this must be a house where some unhappy soul lives, I heard the sound of a koto that only deepened the sorrow.
Commentary
Book Eighteen Miscellaneous Poems II 985

Headnote: "Composed and sent in when, on my way to Nara, I heard a woman playing the koto in a ruined house"
On the way to Nara, the poet heard a woman playing the koto in a ruined house and sent this poem in to her. Looking at the dilapidated dwelling, he felt that the sound of the koto coming from it deepened the sadness all the more.
Taking up the ruined house of the previous poem, 984, it conveys the presence of the person living there through the sound of the koto.
The author, "Yoshimine no Munesada" as written in kana, is Yoshimine no Munesada, later the Archbishop Henjō. A grandson of Emperor Kanmu and son of Yoshimine no Yasuyo, he served Emperor Ninmyō and took the tonsure upon the emperor's death. He is one of the Six Poetic Immortals and the Thirty-Six Poetic Immortals.

The first line, "one who grieves," refers to someone living in disappointment and sorrow.
The second line, "a house where ... would surely dwell," means a dwelling fit for such a person.
The third line, "as I look upon it," uses nae ni, "along with, as."
The fourth line, "adding sorrow," means grief growing deeper.
The last line, "there comes the sound of a koto," uses zo with the attributive suru.
Author
Yoshimine no Munesada
Source
Kokin Wakashu
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