Depending on where you are in your development of piano technique, you need to know and embrace your body’s natural abilities and understand its abilities to learn new tricks (like piano technique). For instance, are you right handed or left handed? It matters. Because your brain’s hook-up with a dominant side of your body favors quick learning and longer-term memory for patterns, it’s important to build a stronger relationship with your back grounded, less called-to-action side. In other words, the goal is to become ambidextrous – i.e. equal ease. Note that I use the term ‘side’ and not just ‘hand’. Because playing the piano well is a full-bodied sport, it’s important to be inclusive of the larger physicality and its smooth integration with/from the brain.
How? Bring the less dominant side forward in all of your daily life. Brushing teeth, opening doors, writing (teach yourself to write with the other hand), stirring a spoon, reaching for something, tying knots, catching an object. You get it. Open up the neural and muscular connections to the side of your body that is usually less employed. Become mindful of your duality and reconsider how to equalize your relationship with both sides of your body. That focus will lead to changes in the way you approach piano technique.