L’autre LaM is a musical audio guide app designed for the Lille Museum of Modern, Contemporary and Outsider Art in France by Ensemble 101, a Paris-based music collective. The app offers four unique museum visits, each featuring a distinct relationship between the museum, music, and user, while also showcasing elements of the permanent collection and over an hour of original music and video. It caters to a diverse audience with a mix of French, English, and various sounds, including a humorous section entirely in English. Developed using the Ionic framework due to its positive reviews and cross-platform capabilities, the app allows for rapid development and online progress sharing with the museum. L’autre LaM is available for download on iOS and Google Play, inviting users to explore and provide feedback.