Based on the information provided, 'Daily Rythm' does not contain identifiable LGBTQ+ characters or themes. Therefore, an evaluation of its portrayal of LGBTQ+ content is not applicable.

The 1958 film "Old Tallinn" is a documentary focused on the city of Tallinn, Estonia, its history, and architecture. It does not feature any identifiable transsexual characters or themes, as its narrative is entirely centered on the urban landscape and cultural heritage rather than individual identities or social issues.

The movie does not contain any action or adventure elements.

There is no widely available information indicating that 'Daily Rythm' (1958) is an adaptation of source material with pre-established characters or a biopic. Without a known baseline, no characters can be identified as having undergone a gender swap.

The film "Daily Rythm" (1958) is presented without any prior source material or established characters. Therefore, it is not possible to identify an instance where a character's race was changed from a previously established one.