Why does the author refer to the typical work hours of 9 to 5?

The reference to the typical work hours of 9 to 5 highlights the routine and structured nature of everyday life for many individuals in modern society. By mentioning these hours, the author underscores how conventional work schedules can shape not only personal routines but also societal expectations and norms. This routine can lead to a predictable lifestyle that may influence various aspects of culture, including art and performance.

In this context, it's about how artists or creators might adapt their works to fit within the confines and patterns established by a predominantly structured workforce. This reflects a tendency within commodity musicals to align closely with everyday experiences of the audience, making the art form relatable and accessible. The daily grind represented by 9 to 5 becomes a backdrop against which the narratives in these musicals are set, resonating more with audiences due to their shared experiences.