Backyard Brix

Birds and bees have been rollicking in the back yard Concord grapes.  Decided to put one on the refractometer, for yucks.  +20 Brix.  Potential alcohol of just under 11%.  Might be fun to try to gather enough to let go with the wild yeasts that are on them.  (Except no one likes the taste of on Concord wine.  Maybe mulled?)