Final answer:
The two primary approaches to music in early sound films were the use of orchestral scores and the utilization of popular songs.
Step-by-step explanation:
The two primary approaches to music in early sound films were the use of orchestral scores and the utilization of popular songs.
Orchestral Scores:
In early sound films, orchestral scores were composed specifically for each film. These scores were recorded separately from the film and then synchronized during the editing process. Orchestral scores were used to enhance the emotional impact of scenes and to create a cohesive and immersive audio experience for the audience. A famous example of an orchestral score is Richard Strauss' "Thus Spake Zarathustra" used in the opening sequence of the film "2001: A Space Odyssey."
Utilization of Popular Songs:
Another approach to music in early sound films was the use of popular songs. Studios used well-known songs in their films to attract audiences who were already familiar with those songs. These songs were often performed by the actors themselves or by guest appearances of popular music artists of the time. An iconic example of the utilization of popular songs in film is Elvis Presley's performance of "Jailhouse Rock" in the movie of the same name.