The film 'Twirlinger Twins in The Violin Recital' does not present any identifiable LGBTQ+ characters or themes. Consequently, its net impact on LGBTQ+ portrayal is not applicable, as there are no relevant elements to evaluate within the narrative.

This 1958 documentary, centered on the 1957 October Revolution Anniversary Demonstrations in the USSR and East Germany, does not feature any identifiable transsexual characters or themes. Its content is exclusively focused on historical political events, rendering the concept of transsexual portrayal inapplicable.

The movie does not contain any action or adventure elements.

There is no indication that "Twirlinger Twins in The Violin Recital" is an adaptation of existing source material or features historical figures. Without prior established canon for its characters, a gender swap cannot be identified.

The prompt provides no information about the film's source material, characters, or their established racial identities. Without a baseline for comparison, it is impossible to determine if any character was race-swapped.