What are guide tones ? They are the notes in a chord which lead or give harmonic pull toward the next chord, these are an excellent way to study and absorb the sound of any chord progression. Guide tones are used to outline chord progressions in an improvisation. They are most of the time the 3rd and the 7th because this is what determines whether a chord is major, minor, or dominant.
By working on guide tones you’ll learn how to target important notes in each chord. This jazz guitar lesson explains how to solo over common jazz progressions using and connecting the guide tones.