Well I'm basing that on reports I saw once that stated there were 20 works in the original Songs Of A Dead Dreamer and I count 18 in Nightmare plus the fact Part 1 starts with
from Songs Of A Dead Dreamer vs. the other section headings made me suspicious. Yes, a difference of 2 is not much of a difference but you never can tell....Quickly typed from my copy, here's the stories in Nightmare ...Frolic, Les Fleurs, Alice's Last Adventure, Dreams Of A Manikin, The Chymist, Drink Me Only with Labyrinthine Eyes, Eye of the Lynx, The Christmas Eves of Aunt Elise, The Lost Art Of Twilight, The Troubles of Dr. Thoss, Masquerade Of A Dead Sword, Dr. Voke and Mr. Veech, Dr. Locrian's Asylum, The Secret Of The Idiot, The Greater Festival Masks, The Music Of The Moon, The Journal Of J.P. Drapeau and Vastarien.
Thanks for any light you may throw onto this...