At a rough estimate, the site has more than 30 x 12 entries for (2017 =571). That offers up too many choices for the current theme. Their compilation for 2016 actually had a few more: 603 to 571.
One of their entries for December 2017 is Charles (Charlie) Manson, who apparently aimed for immortality via the rock-star path, but then veered off to other avenues of (in)famy. Not chosen for SMM beyond curious mention.
Little Peep? I acknowledge his impact. Tom Petty? I actually performed his <YouGotLucky> this fall, totally by chance before I heard of his death. Fats Domino? Always in our memory. But the weheartmusic site includes music related names you may know but had not heard had died this year:
⦁ Nat Hentoff (Village Voice [and more] -journalist)
⦁ Anita Pallenberg (Rolling Stones muse [and more])
⦁ J Geils (founder - J Geils Band)
⦁ James Cotton (seminal mouth-harp blues player)
⦁ Tom Edwards (of Adam Ant - edited thanks to Geomel)
⦁ and that's just a few cursory personal interest-related names.
Above, a random choice from their 2017 list - RIP bassist Steve Wright from the Greg Kihn Band.