Rhythmer
Related to Rhythmer: rhymer
Rhyth´mer
(rĭth´mẽr or rĭth´-) n. 1. One who writes in rhythm, esp. in poetic rhythm or meter.
One now scarce counted a rhythmer, formerly admitted for a poet.
- Fuller.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.