A dominant 7 chord (G7, for instance) is a great opportunity for getting a little adventurous and playing out. You may try the following sample approaches for a little spice:
- Tritone substitute (Use notes of C#7)
- Altered scale (Use notes of G# melodic minor)
- Mixolydian b13 scale (Use notes of G7 but include Eb)
- Diminished scale (Use notes of G# diminished)
- Side-stepping (Use notes of G#7 briefly then return to G7)
- Side-whole tone scale (Use notes G# A# C D E F#)
Dr. Kerem Koseoglu 
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