Originally Posted by: mcullinanOk, I was doing a little thinking.[/quote]
Thinking is good. :)
[QUOTE=mcullinan] A fifth from the 5th fret on the low E. Or A to E across strings. I would look at it like this. A to B is a WS, B to C is a HS, C to D is a WS and D to E is a WS which equals 7 frets. 7 frets is a fifth. YEs?

Yes. And when you put two notes on the same string, this makes the interval (the distance between them) easy to see.

So, the issue that beginners sometimes struggle with is finding the interval between two notes that are not on the same string. It isn't immediately obvious to visual perception without first understanding how the strings are related to each other in intervals.

Look at the fretboard images at the bottom of the 3rd page in the Intervals tutorial:

http://www.guitartricks.com/lesson.php?input=10663

Five frets down and one string up yields the same note in a different place on the guitar. The exception is of course crossing the G & B strings. But the example used in this case, and in the Intervals tutorial, only concerns learning the idea that you can find the same note in more than one place on the guitar. And you must get used to this idea in order to learn to locate any given interval on the guitar.

If you have more questions, please know that you can ask me directly in my instructor forum:

http://www.guitartricks.com/forum/forumdisplay.php?f=36

Have fun! :)