Esprit D’Air is a British-Japanese progressive metal band that emerged from London in 2010, with a name that translates to Spirit of Air in French. The ensemble initially featured members hailing from both Japan and England. Their 2013 single Shizuku marked a significant milestone as the first playable track in the J-rock category of the popular video game Rock Band 3. However, the band disbanded later that year when members returned to Japan. In 2016, Kai revitalized Esprit D’Air as a solo endeavor, collaborating with session musicians and support members, some of whom were part of the original lineup, for touring purposes. Esprit D’Air’s musical style weaves together elements of progressive metal, electronicore, power metal, alternative metal, and metalcore.