Barbara, I know exactly what you mean!

However, as one novelty item of an otherwise 'normal acoustic set', I think it's just a bit of fun. I wouldn't like to see everyone do it as part of every 'acoustic set', though - it would get very tedious!!

Nor could I ever see me doing it - although there was someone who reckoned I must have had something done with the bass end of my accordion, because there seems to be a lot going on and not much movement from my fingers... Tom Bliss, as I recall!

But I digress...!