from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Unvarying, as in quality or character; monotonous: "a one-note, rude, sulky heroine” ( Janet Maslin).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having only one opinion, outlook, tone, etc., especially as expressed repetitively; without variety or range.
An allusion to the monotony of a single musical note played or sung repeatedly. (Wiktionary)