By Jamie Andreas (www.guitarprinciples.com)

Many people begin to play the guitar by learning the guitar chords to
their favorite song, and trying to change them . In fact, I learned
this way. There are many things to be aware of while doing this. There
are things to know and do that can make it easier, and guarantee you
will have success. There are also many things that can go wrong, and
guarantee trouble.

Read the entire lesson here:

http://www.guitargearheads.com/modules/soapbox/article.php?articleID=31