noun
A vocal technique used primarily by male singers to produce notes higher than their normal range, often in classical and popular music.
from Italian
彼はファルセットで高音をきれいに歌い上げた。
He sang the high notes beautifully in falsetto.
この曲のサビはファルセットを使うと雰囲気が
Using falsetto for the chorus of this song creates a nice atmosphere.