Songs of Grief And Solitude is their misunderstood work. It is NOT shit - Drudkh, like Hate Forest, Astrofaes or Temnozor transcends music and expresses culture as an entity. Rather, Songs of Grief And Solitude is underappreciated because the metal world has been spoiled by acoustic works like October Falls, Ulver and Borknagar which approach from a more richer tonal palette.
Peoples' main problem with Songs of Grief And Solitude is that it is folk music from EASTERN Europe, not Scandic Europe: the metal ear is more accustomed to the Scandic folk style, but the folk style from Eastern EU has a stronger gypsy influence and has a much more "arid" style.
The culture being expressed is different, its paganism is different, and in Black Metal like Drudkh, culture is everything. The biggest mistake people are making is that they are seeking "good tunes", and that is not what the primary goal of this music is about. Anyone who thinks otherwise should think twice about why they listen to Black Metal like this in the first place.