Super Mario Bros. Wonder is the latest 2D adventure for Mario and his friends. Released earlier this month, Super Mario Bros. Wonder garnered universal acclaim for its evolution of the series 2D platforming, with many pointing to the immense impact of the Wonder Flower concept at its center. In addition to the Wonder Flower and its reality-bending effects, another concept is central to Super Mario Bros. Wonder: music. Many of Wonder's courses feature music as part of their core objective or unique Wonder Effect, with some even resulting in full-fledged musical numbers. Some fans may shrug this recurring element off as a feature of the Wonder Flower. However, others may attribute the musical nature of Super Mario Bros. Wonder to something more, as its unique implementation lends credence to a longstanding fan theory.