Many of us in blues or country songs have gone from the open position E major to it's dominant 7th counterpart (all chords are illustrated below by order or reference in the lesson). This dominant 7th is usually voice in the follwing two ways from the open E major chord: with the open D note on the 4th string or with the fretted D note on the second string. But there is another cool way to do this chord near the seventh fret to give the dominant 7th chord a more bluesy feel. Take the open position B7 chord and slide it up 5 frets so that the note on that A string is at the 7th fret instead of the 2nd. It is very important that you keep the same open strings as you did on the lower end of the neck as the open E and B notes are the root and fifth of the E7 chord and it sounds real cool and bluesy when these open notes ring out. A simple inversion such as thing can make the chords and songs sound much cooler when applied in the right applied. Try experimenting with other voicings in the same fashion. Happy Strummin'