The primary goal of adapting existing music for film is to enhance the emotional impact of the film by creating a cohesive and emotionally resonant soundscape that complements the visuals and narrative.

There are various techniques used to adapt existing music for film, including changing the tempo or key of the music, adding or removing instruments or vocals, creating new arrangements or orchestrations, and even combining elements from different musical pieces.

Considering the original context of the music is crucial to maintain the integrity of the original musical work, ensure that the music fits the film's setting and period, and avoid copyright infringement.

Adapting existing music can help filmmakers achieve a specific mood or atmosphere in their films by choosing music that matches the emotional tone of the film, using music to create a sense of time and place, and incorporating music that reflects the characters' emotions and motivations.

Music supervisors and filmmakers should consider obtaining proper licenses and permissions from the copyright holders, ensuring that the adapted music does not misrepresent or distort the original work, and giving credit to the original artists and composers.

While finding music that is both emotionally resonant and commercially viable can be a challenge, it is not a common challenge faced when adapting existing music for film, as music supervisors and filmmakers often have access to a wide range of music from different genres and eras.

Music supervisors play a crucial role in the process of adapting existing music for film by identifying and selecting suitable music for the film, negotiating licenses and permissions with copyright holders, and collaborating with composers and arrangers to adapt the music.

All of the examples provided are successful adaptations of existing music for film, demonstrating the effective use of classical music, pop songs, and traditional folk music to enhance the emotional impact and narrative of the films.

Adapting existing music for film can contribute to the overall cinematic experience by enhancing the emotional impact of the film, creating a sense of time and place, and reflecting the characters' emotions and motivations.

Striking a balance between preserving the original essence of the music and creating a cohesive cinematic experience is crucial to maintain the integrity of the original musical work, ensure that the music fits the film's narrative and visual style, and avoid alienating the original fans of the music.