The song "Symphony" by Clean Bandit is performed in the key of B flat major. It was released on 17 March 2017 as the third single from their second studio album, "What Is Love?". The song features Swedish singer Zara Larsson, both as the performer and co-writer. The composition of "Symphony" was a collaborative effort between Jack Patterson, Grace Chatto, Ammar Malik, Ina Wroldsen, and Steve Mac. As for trivia, the song reached the top ten charts in numerous countries and achieved multi-platinum certifications. It showcases a catchy and uplifting melody accompanied by electronic and orchestral elements, blending classical influences with contemporary pop sound.