What is a musical instrument? (A question in 50 years)

Where did the musical instruments go (The disappearing musical instruments)?

My first thoughts on viewing Pat's demo during the Digital Salon for Fall 2009 DAS program at UF was "Musical instruments are going away". Before A.R. Rahman - Music Director for "The Slum Dog Millionaire" won the Oscar award, many musicians and individuals with background in classical music (from India) criticized and debated that A.R. Rahman was a Music Technician; not a Music Director (though he plays Keyboard) and hated his raise as a Music director. Winning an Oscar ended many of those debates! Most of the music by A.R. Rahman seems to be computer synthesized and clips merged from existing Musical chunks!
After viewing the following You Tube video (also available at http://www.siggraph.org/) I am of the opinion that musical instruments will disappear in the next 2 generations (about 60 years) and will become objects in museum. The next 50 years of futuristic music will be synthesized using computer also using copy, paste modify and mix techniques.

Another Blog with similar thoughts:

http://www.dilbert.com/blog/entry/disappearing_concepts/

-Suresh