Allegro’s The Little Mermaid offers a mixed but enjoyable theatrical experience. Emma Clarkson leads with strong vocals and whimsical charm, while Lyndsey McGhee, Emma Dawson, and Zoe Murray excel as the villains. Despite uneven choreography, staging, costumes, and video design, the orchestra delivers a faultless, magical rendition of Menken’s beloved score, making the production worthwhile, especially for families.