What is 10 out of 12?

10 out of 12 is a phrase commonly used in theatrical production to refer to a rehearsal where the lighting, sound, set, and costume designs are all brought together for the first time. It is typically the second to last rehearsal before the production moves into the actual performance phase. During a 10 out of 12 rehearsal, the cast and crew often work for 12 hours with a break allowed for meals, resulting in a long and intense day of final preparations before the show debuts. It is a crucial stage in the production process as it allows everyone involved to see how all the technical elements come together and make any necessary adjustments before opening night.