Watch the Watch The IV online guitar lesson by Jeff McErlain from 30 Sweet Blues Licks You MUST Know
Let's take a look at outlining the IV7 chord on an A blues with a lick I grabbed from Peter Green. Peter Green is one of my favorite players, and I'm not alone, as Gary Moore, Billy Gibbons, and Robben Ford all feel the same way. Green's playing was a little more sophisticated than his contemporaries. He hit the scene at a very early age, replacing Eric Clapton in the Bluesbreakers. He soon left them to start his own band with Mick Fleetwood and John McVie called Fleetwood Mac. Fleetwood Mac was one of the most influential British blues bands, and were wildly popular long before the Nicks/Buckingham era of California inspired pop hits.
Green suffered a mental breakdown that was thought to be brought on by drug use. He never fully recovered, and his story is quite tragic, he is still alive and playing, but he is not as he was. If you're not familiar with his playing, please dig into the early recordings.