On G Major: Am7b5 – D7b9#11 – GMaj9. The right way of playing chords on the piano is to blend the chords with both hands. Think of the piano chords as two parts with the left hand we play a variation of 1, 5, 7 for major chords, 1, 5, b7 for minor and dominant chords and 1, b5, b7 for half diminished chords [m7b5].
With the right hand, we play a variation of the chord or related triad depending on the lead melody and the alterations we want to play. In this example, we are playing chord melody blending chords in both hands.
The m7b5 Chord Blend:
Left Hand: 1, b5, b7 Right Hand: The major triad of the b7 also adding the b5
The V7b9#11 Chord Blend:
Left Hand: 1, 5, b7 R.H: The 6th of the 6th
Left Hand: A, Eb, G Right Hand: Major Triad of G add b5
Left Hand : D, A, C Right Hand: Eb, F#, Ab, B
The 6th of the 6th means the six chord of the 6th degree of the scale. [B6 on this case] The chord could be called B6/D7
The IMaj9 Chord Blend:
Left Hand: 1, 5, 7 Right Hand: The Triad of the root, [ascending the root to the 9]
With this formula now we can play this progression in all 12 keys.
When playing the exercises try not to write the chords down, do not read. Do the math in your head. We need to train our mind to think this way it needs to become second nature if we want to speak the language.