There's definitely something extra lighthearted from the musicals of this era. The quality alone that they contain song and dance, as opposed to being a heavy drama, was an obvious way of distracting audiences from the misery. Another thing I've noticed over the years is small jokes, whether they be a sly double entendre or use of the era's slang. They give a sense that the characters are regular people just like their audiences, but the stories they live through are larger than life. Like in many romantic comedies of the era, I expect to see more love triangles, whether they be romantic or more on the professional side like Ziegfeld, Billings, and Held. I also expect to see a lot more scenes where a leading lady sings a solo and that be the sole focus of the scene. I think that if this had been made a few years earlier, Held would've been wearing something more revealing, and the conversation between her and her maid would've had more crafty quips.