Watch the Combine The b7th And 6th online guitar lesson by Rob Garland from The Guitarist's Pentathlon

The licks I played used both the 6th and b7th. Combining these tones opens up some a nice wide sonic palette and by adding in notes from earlier in the course such as the major 3rd and b5th, there are lots of chromatic possibilities which move our customized pentatonic towards jazz, rock and fusion applications.