Originally Posted by: fuzzb0xsometimes when I see an artist play a solo it looks like they are using what I assume are chords high up on the neck mainly on the G, B and high E string but I cant figure out what these chords could be.

They are usually triads that match the chords (or the overall key) that are happening in the song but in a lower register. For example, if a song is using these 3 chords as the rhythm part: A-G-D. Then the rhythm guitar part might be those 3 chords in a lower register.

|-----------------------------------------------|
|--2---------7----------------------------------|
|--2----4----7----------------------------------|
|--2----5----7----------------------------------|
|--0----5----5----------------------------------|
|-------3---------------------------------------|

So a matching part, but in a lead style, would be to play the same chords but in a higher register. For example.

|--9-----10----10---|---12---15---14----------|
|--10----12----10---|---14---15---15----------|
|--9-----12----11---|---14---16---14----------|
|-------------------|-------------------------|
|-------------------|-------------------------|
|-------------------|-------------------------|

Or you could break them up rhythmically & play them as arpeggios.

|------9-----10-----10---|----9-12---10-15-----10--14-------|
|----10----12-----10-----|--10-----12-------10--------------|
|--9-----12-----11-------|----------------------------------|
|------------------------|----------------------------------|
|------------------------|----------------------------------|
|------------------------|----------------------------------|

I cover this concept of playing triads & inversions on the high strings in this tutorial.

www.guitartricks.com/tutorial.php?input=734

Anders also does a great job of showing multiple ways of playing triads in the rock 2 course starting in this tutorial.

https://www.guitartricks.com/lesson.php?input=21433&s_id=1719

Hope this helps! Please ask more if necessary & best of success!