Watch the Extended Encapsulation online guitar lesson by Tom Wolfe from 50 Hard Bop Blues Licks You MUST Know
Playing over the first 4 bars of the blues, the tendency is to play a bluesy phrase. This lick uses the major 7th arpeggio to start with, and then uses a longer melody to encapsulate (or emphasize) the final note of the resolution. The line has direction, makes the changes and really swings. This is very much rooted in the stylings of Wes Montgomery.