In this YouTube video around 7:02 the author says:
[...] rather is one of those words which can have a different meaning [...] depending on how you pronounce it.
This got me interested and I found two pronunciations in a couple of Internet dictionaries (for example Merriam-Webster and Wikitionary): with an emphasis on the first syllable or on the last. However I think I have never heard it being pronounced the second way.
How does the pronunciation change the meaning of this word and what are some examples of sentences with "rather" being pronounced by emphasizing the second syllable?