Crossword puzzle clue "ain't that interesting"

"Ain't that interesting!"

He said "Slump? I ain't in no slump. I just ain't hitting"

"Sometimes I ain't so sho who's got ___ a right to say when a man is crazy and when he ain't" (William Faulkner)

The Cult "I ain't no sucker, I ain't no ___"

"Ain't" ain't part of it

What "ain't" ain't

A French military strategist described it in 1918 as "an interesting toy" but "with no military value"

Music genre that "must be as ignorable as it is interesting," per Brian Eno