Well after 30 years of specialising in blues harps for playing Irish/Scottish/ Northumbrian tunes, I'm suddenly having to use mostly tremolo harps with the shanty/folk band that has kindly recruited me. It's a learning curve all right, as it requires a different sort of muscle memory and I've rarely used tremolo harps before, and so far I've been mortified about the wrong notes I keep hitting. But with intensive practice I'm getting there (I think). I'm loving the opportunity to do all this new stuff at my tender age. Are you never too old? Don't ask me!