Creating unlimited licks using the pentatonic scale.
The Guitar Player's Resource
The word chromatic in music means two or more consecutive notes that are a half step (1 fret) apart from one another. A guitar chromatic scale contains all 12 possible pitches before arriving back at the starting note name an octave higher. Among other things, playing chromatically can be extremely useful in the context of practice, extending your ability and hand strength across the entire fretboard.
Here are some great columns to help you master this essential technique.
Creating unlimited licks using the pentatonic scale.
Resolving to the 3rd of the chords in a chromatic fashion.
Strengthen your upstrokes so they are as strong as your downstrokes.
Here is a minor cadence used in hundreds of Real Book tunes.