Help Identifying a Reference in Something Rotten

Hey everyone, I teach high school and this fall my school is doing Something Rotten. I am not involved in the production but have been listening to the soundtrack and need help identifying one reference in “A Musical.” Right before the end the music stops and it does 3 or 4 loud bumps/bangs where all the instruments just play one quick note. I know it’s from something else, I know I have listened to that show before, but I just can’t place it. I imagine it’s going to be something obvious but just need to know. It happens at about 7:30 of the soundtrack recording. Thanks for any help.