Piano Forum

Start with a normal triad. Play it evenly. Then, try to stress each individual note. This is relatively easy for the bottom and top notes, because one can simply rotate the wrist a bit, so that more force is directed to the thumb or little finger. The middle note requires some extra action from the finger. One can also make the outer notes louder by using a little bit more action from the finger, but good control is required for that. Finally, one can play the emphasized note ever so slighly before the rest of the chord. This achieved easily when you lower than hand to play the chord: instead of the fingertips being all at the same height, so that the keys are struck at the same time, lower the emphasized finger a bit, so that it strikes the key a bit before the others.

As with such subtle nuances, everything is futile if you can't actually hear the effect. What sounds like an even chord to one person may not sound even at all to a more experienced pianist with lots of eartraining. So, first make sure you can actually hear the effect before you are trying to duplicate it.

Hope that helps.