How to Find the Key | JamPlay Answers

This is a 4.43 minute video response from DJ Phillips on Sep 15th, 2009

Question:

"Hi, I would like to know how one can determine what key is the individual playing there chord progression in and if it is major or minor key. Please help I am having a hard time understanding this piece and know if any one could help me, it is you guys at JamPlay. Thanks Jose Otero. Rock On!"