We had a problem a couple of years ago with the country band I play in.
Our usual drummer could n't make the gig, and so had booked a dep to cover it. As I was
driving to the gig the dep rang and apologised for not being able to play, due to some
family issues. I rang a drummer who lived 5 mins from the gig, but he could n't do it as
his main kit was in a van somewhere and his spare kit was in the loft!!
So, we did the gig without drums. Piano & accordion, guitar and bass, fortunately all singers too.
And, yes you've guessed it, we went down a storm. Versions of songs we usually played sounded
so different but good, and some 'arrangements' were made up on the fly to ensure they worked.
Quite a revelation for band and audience.
Now would it have worked without the bass I wonder.......