Watch the Double the Fun online guitar lesson by Jeff McErlain from 50 Blues Rock Guitar Licks You MUST Know
A double stop is violin term, it means to play two strings at once. This lick can be done with pick and fingers or just your fingers, sometimes I will do both. I really love this one because it is so useful as a lead line or a rhythm part. So really try to use it in both situations, bring it up an octave, change keys, take it through a blues progression, experiment! The funny thing is that once you get this one together, you will hear it all over the place in some form or another.