Self Made, altered and unusual instruments
For those who might be interested there is a comprehensive showcase of video dedicated to self-made sound (musical) experimental instruments. See/hear: experimental instruments at this link:
Moondog playing “The Timbra” on Oasis
From Moondog And His Friends 1953
Johm Cage (1945) three dances, for 2 prepared amplified pianos, works for piano & prepared piano, vol. 2. wergo, 1995.
hang drum solo
A Hang (pronounced [haŋ], with vowel sound between those of the words hot and hungry) is a musical instrument in the idiophone class created by PANArt in Switzerland.