Who owns the rights to Ronald Stein's music from the film Dementia 13?

The rights to Ronald Stein's music from the film "Dementia 13" are typically owned by the production company or the film's copyright holder. Since "Dementia 13" was produced by American International Pictures, it is likely that they hold the rights to the music. However, specific rights can also be influenced by contracts and agreements made at the time of the film's release. For precise ownership details, legal documents or music licensing databases would be required.