also: プリペアードピアノ
noun
prepared piano
A piano whose sound has been altered by placing objects on or between the strings. Used in contemporary classical music.
ジョン・ケージはプリペアドピアノのための作品をいくつか作曲した。
John Cage composed several works for prepared piano.
Spelling with interpunct, sometimes used for clarity.
Long-vowel variant with interpunct.
Borrowed from English 'prepared piano'.