Originally Posted by: Mike_x1x
Sorry if this question seems lame but I am at a loss in understanding the relationship between beats and tempo.
Beats are evenly spaced pulses of time passing in music. In 4/4, that is indeed 4 beats per measures, regardless of the tempo.
Tempo is how fast those pulses occur. 120 BPM is faster than 100 BPM, regardless of the time signature.
Guitar Fundamentals 2 Chapter 4 is all about reading music; including time signatures and tempo.
http://www.guitartricks.com/course.php?input=2
Feel free to simply go through that chapter, or you might want to start at the very beginning in order to get a thorough grounding in the basics from the ground up.
http://www.guitartricks.com/course.php?input=1
Either way, please ask more if necessary, let us know how it goes & have fun with GT & your guitar. :)