prepared piano

(music) A piano that has had its sound altered by placing objects (called preparations) on or between the strings.

Japanese Meaning

弦に配置した物体（「準備物」と呼ばれるもの）によって音色が変化させられたピアノ

The composer wrote a haunting piece for prepared piano to explore percussive textures.

作曲家は打楽器的なテクスチャを探るために、弦の上や間に物を置いたり挟んだりして音色を変えたピアノのために不気味な曲を書いた。

Sense（1）

(music) A piano that has had its sound altered by placing objects (called preparations) on or between the strings.

prepared pianos

（ plural ）