if youre interrested in sound synthesis read this , its part of a reference book on acoustics that was adapted to a cd-rom in the 90' and its now available as a web page , i am currently reading it and it has the answer for many questions that i couldnt find anywere. its all very precious information .
http://www.sfu.ca/sonic-studio/handbook/Sound_Synthesis.html (http://www.sfu.ca/sonic-studio/handbook/Sound_Synthesis.html)
if anyone has other links to that kind of readings please share :)