Back when Jimmy Cater was president, I took recorder lessons. I wish I'd stuck with them - recorders are lightweight, can be safely broken down into many pieces, and they make a cool noise. I moved on to the clarinet, at which I was pretty lousy, and my feeble attempt to learn piano in college merited only snickers and pity. (Musical subtlety is not my talent.) A year ago I held a clarinet again after twenty seven years and I didn't remember where to put my fingers.
However, I still remember all of the theme to Star Wars on the recorder, and play it when no one else can hear me.
I've also been known to play a little J.S. Bach Anna Magdalena Notebook but only when I cannot be heard.