Here are entered compositions not in a specific form or of a specific type for a piano whose sound has been altered by attaching objects such as clips, paper, rubber, or felt to the strings; mis-tuning the unison strings; etc.The term "prepared piano" is used as a medium of performance in headings for one or two solo instruments. In headings for other works that include prepared piano, the generic term "piano" is used as the medium of performance and a second heading, Prepared piano music is added. --headings for forms and types of music that include "piano" or "pianos" and headings with medium of performance that include "piano" or "pianos"
