In my novels of Harvey Drago, Intangible Private eye, the plan is that the bulk of the action takes a week, with one chapter for each day. In Howling in the Park, I used the old nursery rhyme 'Monday's Child', with the final chapter, Sunday, the night of the full moon, when the werewolf Harv is hunting shows up in all his bestial glory called 'And the child born on the Sabbath Day is feral and wild and shaggy and gray'.
I've got something similar planned for what will be the fourth or fifth or maybe sixth book, Male and Female Made He Them, in which the client is the Frankenstein Monster. I'll use the Solomon Grundy rhyme for chapter titles in that.
My problem is that I settled on song titles mentioning the days of the week for the second book, Dead Women in Love. The difficulty is that there are damn few song titles about Wednesday and virtually no good ones about Thursday. I may call the Thursday chapter, 'Nobody Writes Songs About Thursday'.
Elvish Has Left the Building, about a group of elves imitating dead rock & rollers, will probably have chapter titles taken from songs by the imitatees, Elvis Presley (Elvish), Janis Joplin (Janis Goblin), Roy Orbison (Roy Ogreson) and Jimi Hendrix (Jimi Hendragon), with no regard for days of the week. Since the title of Experienced Corruption is from Paul's letter to the Romans in the New Testament, I expect I'll use Bible verses for those chapter titles.
I have no idea what to do about All the Damn Vampires or Speak Not Ill of the Undead. I'm open to suggestions.