I have recently been going on a city pop genre binge, and previously found this song. I also saw it on an instagram reel, that I no longer have. I was impressed by the trumpet playing, and wanted to listen to the whole song, and possibly more from that artist/group.
I've tried looking through japanese city-pop playlists on spotify and youtube, but it doesn't seem to be a big one, like Stay with Me or something. I also tried looking into japanese jazz (and found some great music), but no luck identifying this song.
I dont know what the lyrics were, but the bits I remember are a short trumpet introduction, with a chromatic pick up into when the phrase starts. The female voice is harmonized and sings a phrase, which is then responded by a group of trumpets belting very high notes in a loud and powerful chord. This sort of voice/trumpet switch off happens for the verse I can remember, but thats about it.
Does this sound at all familiar to anyone?