Interesting thread.

Like LDT above, I have tinkered with guitar but find it so uncomfortable on the finger tips, I can't persevere with it. Same applies, I suppose, to mandolin and related instruments. My melodeon, by contrast, has smooth buttons that are a joy to handle - for me, it's got to feel agreeable (or at least not painful) to hold the instrument and make a sound on it.

The fiddle is probably less sore on the fingers, but the lop-sided way you have to hold it and support it with your chin seems counter-intuitive and awkward to me. I am also put off it by the fact that it takes a long time to learn to make even a moderately pleasant sound on a fiddle. It's not an instrument for the lazy or the careless.

Hammer dulcimered is another thing I wouldn't want to play, as it's so bulky and takes up so much space at a session. Its delicate sound can also get drowned out by with other instruments, so it's really better doing solo pieces, which wouldn't appeal to me.

Apart from those, there's not much I wouldn't like to have a go at, and if I had several lives to live in parallel (or even in sequence? who knows?) I would try to master another instrument or two. Or maybe even master the ones I play already ...

Marje