Once
Once (Latine scilicet Quondam) est quintum album gregis musici Finnici Nightwish anno 2004 editum, quod continet nota carmina gregis Wish I Had an Angel, Nemo, The Siren. Carmine Creek Mary's Blood exeunte poema recitatur a John Two-Hawks lingua Indorum Americanorum; carmen Kuolema tekee taiteilijan autem Finnice cantatur a cantatrice Tarja Turunen. Hoc fuit etiam ultimum album gregis Nightwish cum Turunen.

Carmina albi 
 Dark Chest of Wonders
 Wish I Had An Angel
 Nemo
 Planet Hell
 Creek Mary's Blood
 The Siren 
 Dead Gardens
 Romanticide
 Ghost Love Score
 Kuolema Tekee Taiteilijan
 ''Higer Than Hope

Alba Nightwish gregis
Musica 2004