So we`re booked for a Gig this Saturday, it's our first gig with this lineup, and I get a Call from our Guitarist/Singer, that due to deeply personal problems he can`t make it to the gig. Since we're a trio there is no other option but to cancel the Gig. So I get on the phone and try to find a replacement band, I get in touch with an old singer guitar player we used to play with who plays in a few other bands, and he suggests that He'll do the gig with us. Something I had not really thought of with such short notice. He dosn't really know our repertoir (Alt rock) but sais we can probably pull together 3 sets of rock and classic rock standards together along with a few from our repertoir for this Saturday. I'm kind of in a bind, because we never really discussed subs with our singer and I don't feel now is the appropriate time to call him while he obviously need to be closse to his family right now, but I also don't want to let down the venue 2 days befor the gig!!! Should we just do the gig with our sub and then let our singer know that we went ahead with the show, or do we talk to him about it, even though he could probably care less about music at this very moment?