Yes, you are right. Just I wrote the above as a single word, not in a phrase. I overcome the difficulty of "ever" or "never" in an English phrase: Just to remember: ποτέ in a phrase: never, or ever (in a question). More info here: https://el.wiktionary.org/wiki/%CF%80%CE%BF%CF%84%CE%AD
No, it is a crazy, glitch, bug in the audio system. Try to ignore it until it's cleared up.
And it is not an article..."η" is the feminine definite article "the" but
"ή" is the conjunction meaning "or". It's one of the few times where an accent changes the meaning of a word.