Distinguishing Between 1920s and Futuristic: Band members

Here I carried out some further research into differentiating the 2 time frames on screen.

1920s

I expect the jazz band members to be wearing quite formal white shirt with black ties/bowties. Also bowler hats would give a good impression of being in the past.

Futuristic

After the peak of the song, I imagine the band members to be more colourful, dissing the bowler hat with now maybe a modern hat or slick back hair for men. Also the band becomes more lively meaning they would dance and move around more.