"picking up things quicker than ever".   Congratulations, Will.

I'm with you.   I'm a firm believer that music keeps you young.   Quite beyond any benefits fighting off any potential mental decline, just the many-faceted and ever-increasing satisfaction it brings is bound to do that. Particularly making music with others. But also just making music yourself. And even learning to like different music--(though there are limitations on that--I'll listen to a new (to me) piece of Schubert chamber music or a reggae song I don't know long before I'll invest much time in rap.)

I'm constantly learning new (to me) songs--though they tend heavily to be at least 50 years old.