Musical interval of three adjacent whole tones or six semitones; in a diatonic scale each octave contains 1 tritone (e.g. F–B in C major)
1In the distance, Alex heard the rising tritone of sirens.
2In music, a tritone describes the interval that splits an octave exactly in half.
3The autodoc in the wall chimed in a calm tritone.
4And yet, there was a loud tritone, kicking off your experience with an early Macintosh.
5A tritone chime announced the pilot, and her voice came over the shuttle's public-address system.
6The security alert tritone sounded on the civilian channel, followed by a woman's anxious voice.
7The tritone alert came and the public-address system clicked.
8David almost ignored his hand terminal's tritone chime.
9A low-pressure Klaxon was sounding, its tritone blat designed to carry through thin and thinning air.
10The music keeps swinging across the historically diabolical interval of the tritone, building to a climax of icy splendor.
11The soft tritone sounded.
12But presently some one in the Via Tritone cried out, Helloa!
13Tritone, augmented fourth, known as "the devil in musick" from early medieval times.
14You see, I was delayed by a crowd in the Tritone-thereis always a crowd there.
15Early in December the move to Rome took place, and they found rooms at 28 Via del Tritone.
16So irritating was this combination of notes that tritones were thought in Gregorian times to invoke evil incarnate.