Hi all, This is my first post, so please bear with me! I've been a serious bassist in my life, but I don't play very much anymore. I have a bass that I'm getting ready to sell, and I today I discovered a crack in the rib (shown in the image-- it's difficult to see). It's been a difficult winter here in Michigan, and since I haven't been playing at all, I haven't noticed. Obviously, it's always alarming finding things like this on our instruments, and since I don't have time to take it into a luthier (unless of course it needs immediate attention), I wanted to see if any of the knowledgeable folks on here could give me some idea of how serious this looks, and what it may take to patch it up. Thank you!