What is the main difference between technical rehearsals and dress rehearsals?

The distinction between technical rehearsals and dress rehearsals lies in their primary focus and purpose. Technical rehearsals are specifically designed to concentrate on the integration of all technical elements of a production, such as lighting, sound, set changes, and special effects, without the full emphasis on costumes and makeup. This rehearsal allows the crew to ensure that all technical aspects work smoothly in coordination with each other and that cues are appropriately timed.

On the other hand, dress rehearsals involve the complete performance, including actors in their full costumes, makeup, and props. This rehearsal is essential for making sure that the production flows smoothly, and it gives the cast a chance to perform under conditions that closely replicate those of a live performance. Hence, while technical rehearsals are about perfecting the technical side, dress rehearsals are about preparing the entire performance for an audience, showcasing the importance of both the visual and performative elements of the production.