In this video
Alternate picking is a more economical way of picking, as opposed to just using down picks. There are other picking methods including directional picking and picking the same way as you would strum a rhythm. However, alternate picking is the best to learn first before moving on to any other more advanced techniques.
Alternate picking exercise 1 and 2
Lead Guitar Level 1
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STOP Unwanted String Noise with Creative String Muting
The Blues Curl - THE Core Blues Technique
Add Vibrato for More Expressive Lead Guitar
Alternate Picking Workout To Build SPEED
Kurt Cobain Player Study (Nirvana)
Minor Pentatonic Scale Shape 1
Minor Pentatonic Extensions
Slides and Phrasing For Even More Expressive Lead Guitar
B.B. King Player Study