http://backingtracksforscales.com/ A great guitarist from Thailand Sakarin Suwannarat(http://www.youtube.com/user/sakarinsuwannarat) improvising over A Harmonic Minor track from the Harmonic Minor Scale Pack.

You can get it here: http://backingtracksforscales.com/HarmonicMinorScale.html

Download a free eBook "Insights From The Pros" and discover what 18 world class guitarists have to say about scales and improvisation. http://eepurl.com/cBhno