1) Arouse 2) Cause to be out of tune 3) Deliberately disharmonize 4) Discomfit 5) Discompose 6) Disconcert 7) Elicit 8) Enkindle 9) Evoke 10) Fire 11) Kindle 12) Provoke 13) Put out of pitch 14) Raise 15) Render out of pitch 16) To discompose 17) To put out of tune 18) Upset Found on https://www.crosswordclues.com/clue/untune
to render or cause to become out of tune: Changes in weather can untune a violin. · to discompose; upset, as the mind or emotions. Found on https://www.infoplease.com/dictionary/untune