The song is nice. I've never heard of the group before as I really only pay attention to MCZ in the idol world, but this was nice. I guess it's sad to see your favorite groups split up and move on. Actually, I know it is, as I was a huge Spice Girls fan!
Don't you think that lately there is a lack of pitches in Stardust groups? This month it be releases the 3 single major of Bassho and the 2 Full Album of Syachi but after that there is not announced absolutely nothing more for none of the 7 major groups !! Above all I am struck by MCZ and Ebichu that (without counting their last recompilations) they take quite some time without releasing new content.
I don't find anything special in new songs of musume, but may be they are a little better than the rest of their recently stuff. and yes, Seiko has a masterpiece
^maybe that's from my old fandom. My starting point for idol music was Hello! Project many years ago. Jealousy Jealousy feels so much old school (with a few newer influences - like the "K-popish" 2nd break) that I am feeling that I missed Tsunku stuff. I think both tracks are good, BNW is a little bit too repetitive. It is fun (for me at least).