The only chords used are the chords listed in the origianl post. Remember to use your scales with the chords, although it may sound as if the chords may have changed, it may just be the application of the scales. The Pentatonic scale is usually a very easy scale to use. You can just about play any note in the scale randomly to the rhythm and not go wrong. You can also work other scales in between chords or playing chords in Left Hand (Blues-Pentatonic, major, minor, etc.,). I will post more midi examples in the near future. Always "Pray" before you "Play"! Hope this helps.