0:07  The solos in the first video sounded a little odd and not very musical, because the set of notes I was working with was too small. We can extend this set of notes by examining which scales go with each chord.

 0:27  The first way of looking at how scales relate to chords is to examine how chords are constructed.

• The Cmaj7 chord goes with the C major scale.
• The Cdom7 chord has a b7 so we flatten the 7th note in the C major scale.
• The Cmin7 chord has a b3 and b7 so we flatten the corresponding notes in the C major scale.

 0:53  The Cdom7 scale has the same notes as F major, the Cmin7 scale the same notes as Bb major, but it's important to learn these as separate scales.

 1:36  The second way of relating scales to chords is to use modes. Each mode is generated by writing out the notes of the major scale, starting on a different note each time. The root note defines the tonic, while the 3rd and 7th define the type of chord.

 2:45  The most important modes to start with are the Ionian, Dorian and Mixolydian. When you start looking at minor keys, the Aeolian and Locrian modes are also important.

 3:01  It's important to learn each mode as a separate scale! And in all 12 keys!