Dvořrák's Symphony # 9 (Largo) can precede Dvořrák's Symphony # 9 (Allegro con fuoco) and the two can be played as a single piece.
Allegro con fuoco: “Fast with fire” (mm=130 - 145)
At the end of Measure 43 you will see: //near the top of the staff. These two slashes are called a Caesura, sometimes called a Grand PauseorLuftpausen.
The slashes mean there is to be a brief, silent pause in the music for everyone. A caesura usually comes in an unexpected place in the music.
Sometimes we call the caesura "railroad tracks" or "tram lines" because that’s what they look like. And like real railroad tracks you want to stop suddenly, carefully look both ways then make sure you watch the conductor for when to go across the tracks.