Etan, I admire your 'not yet mentioned' category, as some (Tecumseh Valley, Ellenmore) are rarely mentioned, but no one has brought up
   Anach Chuain (sung in the Irish; about a sunken boatload of young                people from one small village)
   The Brean Lament (which is also on my Most Beautiful Tracks Ever Recorded list)
   Hard Road to Peacham
   Lullaby Behind the Lines