The following won’t be tips for playing a different dynamic in each hand on piano but rather general interpretation strategies. Like we saw in the other interpretation posts, interpreting dynamics relies on your imagination skills.
William Sherman talks about how he visualizes his dynamics:
Begin the first measure very softly, the second a trifle louder, the third louder still, the fourth falling off again. As you stand on the shore and watch the great waves coming in, you see some that are higher and larger than others, so it is here.
The concluding passage in sixths should diminish – like a little puff of vapor that ends in – nothing…
The beginning of the sixth page is very piano and light – it is nothing more than a breath of smoke, an airy nothing. (Piano Mastery: The Harriette Brower Interviews 74 – 76)
Using your imagination will be the key to playing with feeling – by creating stories for your music.