I'm going to start a duet with my bro' (he plays saxophone, keyboard, and a few other instruments). I'm wondering should I record a demo before tying to get gigs.
...but if the gigs you're trying to get don't require one, then you won't need one!
Some places DO want to hear ya, others don't give a damn... if the deal you cut is "for the door", they may be less picky about wanting to hear ya first.... on the other hand, there are no rules about it........
You're better off having one, that way, it's there if you need it!
making a demo can really tighten up your sound, too....you can hear what needs improvement or polish...even if you think you sound a certain way, a demo that you hear with your own ears can show you things you've never thought of....and a demo will look professional to the potential gig-givers as well.....gibs