Grandpa tried to teach all my siblings step-dancing and pipes, and it didn't 'take'. I arrived year after he died, way more musical than them. I have the goofy notion sometimes the musical spirit left him and came down to me.Similar stories as those above--finally learned at "nonmusical" Dad's funeral that A. he used to call set dances and play fiddle but as the old aunt said 'I wouldn't grant him a degree in violin, if ya know what I mean'. and B. That a stash of Grandpa singing was hidden away in the Folk Archives.
Mom played parlor piano, and got too busy to keep it up, I wish I had coaxed her into becoming an active musician again.
Anyway, it does seem to pay to ask silly questions of and about the old timers in the family, you never know what you might discover.