Almost 10 years late to the party, I only recently discovered Band-Maid. I guess I had previously been conflating them in my head with Babymetal and thinking they were some gimmick band because of their outfits. Boy was I wrong!
As an instrumental, this track is an unusual one for them, since they have a dedicated vocalist too. But it was the first one I listened to and it immediately blew me away. It really shows off the technical and song writing prowess of the band.