Answer: diapasons

AnswerCrossword Clue
DIAPASONSPipe organ stops
diapasonsAn organ stop sounding a main register of flue pipes, typically of eight-foot pitch
diapasonsThe entire compass, range, or scope of something
diapasonsDIAPASON, a whole range of musical tones, also DIAPASE
diapasonsA grand swelling burst of harmony