In one of the finest RMT's ever "The hand" Alexander Scourby does the very same tortured monologue in the "teaser" (when he sees, for the first time, the subject of the story) that he did in the actual show, but the producers use a totally different music bed. It was amazing to me what a difference that made in lessening the impact of what was being said.

Wisely, they used a different one in the actual play that worked MUCH better.

BTW, "The Laughing Maiden" also has such a teaser as you discussed. 