Playing sounds by shadowing
New-Century Instrument
Peter Vogel
Artwork: The Sound of Shadows Documentary
The artist Peter Vogel created an interactive structure The Sound of Shadows Documentary, which controlling and playing sounds by shadowing.
Can you say if this work can identified as a instrument? As it can be played sound when human playing it, can expresses melody lyrics, can cooperates with other instruments. As a music box.

as David mentioned in his book vs.Interpretation,
‘ Musicians don’t necessarily think of their instruments as technology, but they are. ‘
‘ And all the sound that come from the instrument are physically modeled digital sounds.’
You can understand, I understood the instruments as technology, it’s another way can indicate without words. Probably it’s better way to blow out own emotions than speaking in words, whatever positive or negative signs.
As far as I can see, the instruments, in any forms, pronating and louding hearable sounds.