I find that scale sequences are one of the best ways to add or release tension in a solo. Sometimes a solo just calls out to end on a low note. In that case, descending scale patterns are a great way to get there. Other times, you want to lead up to a searing high note. An ascending scale sequence can do the job nicely there.
Hopefully these exercises will get you interested in scale patterns. These are just a few common examples. If you search hard enough, you will find tons of other out there. Or you can come up with your own!
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Here is another one of my favorite scale patterns - the third interval. The third interval simply means that we play a note, then skip the next note. So with G Major scale, we play G and B, then A and C, then B and D, etc. This pattern is also very rhythmic if you group 3 consecutive thirds into a sextuplet.
I prefer to alternate pick this exercise. Also, even though the Tab does not indicate it, I tend to group 3 consecutive thirds and play them as sextuplets (6 notes per beat), accenting the first note of the group. Just something to consider!