What is Inside the Piano? Webquest

http://wengleemusic.wordpress.com/category/construction-grand-piano/

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http://www.allegropianoworks.com/piano_amazing.htm

http://www.concertpitchpiano.com/GrandPianoConstruction.html

http://www.howitworksdaily.com/whats-inside/see-inside-a-grand-piano/

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