XpressMusic does seem to be a very popular request. I agree it would be great if HMd could improve the audio on their phones the way they're improving the camera.
HMD oddly decided to stop using ATMOS audio after nokia 6. HMD has to improve speaker performance indeed.
Maybe XpressMusic will be the next retro phone? I think it's got a lot of potential, something like the 5800 slider.