G Chromatic
G · A♭ · A · B♭ · B · C · D♭ · D · E♭ · E · F · F♯
All twelve notes, each a semitone apart — G Chromatic isn't a key so much as the complete set of available pitches. Nobody improvises in it directly; its value is as a source of passing notes and chromatic approach tones that connect the notes of whatever scale you're actually playing. Used sparingly, it's what makes lines sound fluid.
Left-handed
Practice this Scale
Play-alongs where G Chromatic has been identified to match well with the track.
Mellow Neo Soul RnB Guitar Backing Track in G minor
This scale, used sparingly, can create interesting tension and resolutions, especially when traveling between strong harmonic areas.
Dark Secret Blues Guitar Backing Track Jam in G Minor
Add passing tones and tension over dominant and seventh chords, especially during bluesy improvisation with the genre's style.