Research

Pitch Correction:

http://www.soundonsound.com/sos/feb07/articles/logictech_0207.htm

http://audio.tutsplus.com/tutorials/production/how-to-use-pitch-correction-for-vocal-effects/

iMovie:

http://www.apple.com/ilife/imovie/what-is.html

Musique Concrete:

[|http://www.wikihow.com/Make-Musique-Concrète]