Answer: trebles

AnswerCrossword Clue
TREBLES

Highest voice parts

TREBLES

Increases threefold

TREBLES

Multiplies by three

TREBLES
High voices
TREBLES
High-pitched voices
TREBLESShrill voices
TREBLESSoprano parts
TREBLESDoes multiplication on
TREBLESSopranos.
TREBLESShrill voices.
TREBLESHighest parts, in music.
TREBLESCertain voices.
TREBLESMultiplies by a certain number.
TREBLESTriples
TREBLESShrill sounds
TREBLESStereo settings
TREBLESHighest parts to Kathleen Battle