Lions used moisturizing cream for playing piano for 30 years. Too much & it makes the keys very slippery. Too little & cracking skin is the result. Get it just right & it makes the keys grip more. What if there was no guesswork & adhesion was added to make a cream that let pianists grip the keys more. It could make more money than actually playing music. A grippy moisturizing cream has long been a goal of the industry, but it's incompatible with the oil used to moisturize.