What a load of old toot. The fact is, I embarked on Learning to Play the Piano with a vague notion that I'd be playing a piano in a pub one day, and five years from now was the time scale I had from looking around usenet groups and doing some quick calculations. What I didn't realize then was that I would learn to read music much more quickly than that - I'm probably half way there already, and would expect to get through the theory part of PSP by Christmas, or thereabouts. But that'll mostly be a hand-eye thing, I won't have it in my ear for a while.
And then this morning I woke up and said out loud, "tin whistle".
I've been online this evening and bought a Clarks Sweetone D. And this book. The whistle's got a notation system all its own, and lots of the older songs here have it alongside a conventional staff. So that should be good learning for the ear. The taking five years to get good may not even start until I fall in luerve with an instrument, and when I do that, I'll really get into practising. That instrument won't be the ukulele. It might be a piano. Or an accordion. Or a penny whistle. Or something. And then I'll be playing it in a pub, if I'm spared.