Off-key in a sentence as an adjective

The point about his headphones seems especially off-key.

Yiannopoulos can sing exactly one note and even that is off-key.

Hopefully the microphone could tell you if you're singing off-key...Imagine busking with the lyrics, chords and notes for the song appearing in front of you as you play.

The neighborhood, once heavily Hispanic, was being inundated by hipsters and yuppies..."Seems a little off-key, given that Exile in Guyville, partly a complaint and insider takedown of the Wicker Park scene, came out in 1993.

Off-key definitions

adjective

inaccurate in pitch; "a false (or sour) note"; "her singing was off key"

See also: false sour