Describe the practical application of advanced music theory concepts, such as modal interchange, non-diatonic harmony, or atonality, in the context of film scoring.

Advanced music theory concepts such as modal interchange, non-diatonic harmony, and atonality provide composers with a rich palette of tools for creating nuanced and evocative scores for film. These techniques go beyond basic harmonic structures and offer a way to create a more complex and emotionally resonant soundscape, adding depth, tension, and a sense of the unusual or unexpected. Understanding the practical application of these concepts allows a composer to craft more sophisticated and individualistic scores that serve the specific needs of the narrative. Modal interchange involves borrowing chords from parallel modes (e.g., using a minor chord in a major key or vice versa) or from other scales. In film scoring, this technique can be used to add subtle shifts in mood without a complete key change. For instance, a film scene might start with a theme in C major, expressing a sense of stability or happiness. To convey a sense of underlying tension or unease, the composer might use a chord from C minor, such as an A-flat major chord, a borrowed chord that is not in the scale. This chord change is a subtle one, but it adds a feeling of something not being quite right, or adds a layer of emotion that is not easily described. Modal interchange can create a sense of nostalgia, melancholy, or unease that cannot be achieved through basic diatonic harmony. The changes feel natural and organic while still expressing a unique emotional shift. Non-diatonic harmony in....