Watch the Sweet Intro online guitar lesson by Jeff McErlain from 30 Sweet Blues Licks You MUST Know
This is truly an essential BB King lick - we start off with The Lick! The trick here is placement as it's a pickup, so the lick starts before the top of the blues form and comes in on beat 4. So, listen to the count off and make sure you nail the timing on The Lick, or it'll be a swing and a miss!
To me, the hardest part is not rushing it; it's difficult to play as relaxed as BB did. His relaxed feel is as big a part of what made him great as his note choice.