My daughter is preparing for Grade 6 Singing exam (Trinity). This contains compulsory sight singing for the first time. How can she improve this as she has never done this before? When I asked previously the only suggestion was joining a choir but of the three she looked to join, none did sight singing at all so there was no benefit. Are there any apps specifically for sight singing (not general instrument ones that will not help)? Is there anything else someone can suggest? Thank you.