It was at this point that the musicians hired to accompany the films began to take the music more seriously. Set standards were created but the musicians job was to make sure that these standards did not become monotonous. .
Along with an increasing need for musicians to understand the plot and intended emotions of the film, so was the need for actors and actresses who could effectively portray the character development. Musicians began using simple motifs that introduced a character or foreshadowed an event. Motifs are the elements of music that are pivotal in shaping the characters and the theme of the film. It was the use of these motifs that made the music much more sophisticated and people began to take the films more seriously. The idea of motifs did not disintegrate but rather became an important technique in the scoring of films in the years to come. By this time the music was ceasing to be merely and extra job for Vaudeville musicians and had actually become an art that needed and was given thought, time, and talent. The house musicians, which later became a small ensemble and sometimes even a large orchestra, were a valued addition to the movie industry and they could be found in hundreds of movie houses across America. The house musician remained in movie houses for many years, however they eventually disappeared to make way for the recorded film score, known as a "talkie" or "canned music".
The 1930's were a remarkable decade for movie music. Symphonic, highly orchestrated film scores began to "take a seat closer to the front of the bus." Well-respected, highly talented composers began to score films, leaving behind the simple, under-developed music which had once been considered adequate to accompany a film. Writing film scores became enormous projects, taking time, resources and a bevy of fine musicians to make the director's vision for the final film a reality. With the development of intricate, multi-layered film scores, came a concept known as the "click track.