'That song which, for you, epitomizes the ideal song to sing... the one that falls out so easily and smoothly that it just makes you feel good to sing it, no matter what mood you are in.'

I don't even feel that good about people......

'falls out of you esily and smoothly......'

senokots, or a couple of pints of Mad Jacks Stout - if they're to hand. usually gets things moving.