Left Hand
Very often you can make variations in the left hand which are not quite difficult to perform but which has a good effect on the accompaniment. Many left-handed principles apply to certain styles.
The left-handed principles are divided into 6 different principles which can be seen here on the left in the submenu.
See also Chords On Piano 1 p. 50-52, Chords On Piano 2 p. 64-66 og Chords On Piano 3 p. 56-67