Have any of you had hard, smooth, almost leathery callouses? How do you soften then enough to play?
I’m a harp performance major and practice about 4 hours each day. Over the past year, I developed these callouses, primarily on my RH thumb, but the other fingers to a lesser degree. I struggle to control my tone quality and volume because there’s no way of having good contact with the strings. I’ve tried filing but to no avail.