conceiver
nounEtymology From conceive + -er.
1
One who, or that which, conceives.
- Godspell’s original conceiver, and later author of the like-titled book, was one John-Michael Teblak, a Carnegie Tech student who created the work as a requirement for his master's program.1990, Wayne Jancik, The Billboard Book of One-Hit Wonders, →ISBN, page 285: