tuning peg

US /ˈtuːnɪŋ peɡ/
UK /ˈtuːnɪŋ peɡ/
"tuning peg" picture
1.

チューニングペグ, 糸巻き

a device on a stringed musical instrument that is turned to adjust the tension of a string and thereby change its pitch

:
He carefully adjusted each tuning peg on his guitar to get the perfect pitch.
彼は完璧なピッチを得るために、ギターの各チューニングペグを慎重に調整した。
One of the tuning pegs on my violin is loose, making it hard to keep in tune.
私のバイオリンのチューニングペグの1つが緩んでいて、調律を保つのが難しい。