Based on the provided information, the film 'Let the Music Be' does not contain identifiable LGBTQ+ characters or themes. Consequently, there is no portrayal to evaluate, resulting in a net impact rating of N/A.

The film 'Let the Music Be' (1990) explores a young man's struggle with his homosexual identity and societal expectations. There are no identifiable transsexual characters or themes present in the narrative, leading to a determination of N/A for transsexual portrayal.

The movie does not contain any action or adventure elements.

This film is an original musical drama, not an adaptation of existing source material or a biopic of historical figures. All characters are original to the film, thus precluding any gender swaps from prior established versions.

The film "Let the Music Be" (1990) is an original production, not an adaptation of existing source material with established character races, nor does it depict historical figures. Therefore, no characters exist with a prior canonical or historical race that could have been altered.