Display Music Artists as Surname, Name



the title is self explanatory but additional info may be required
Skin, Confluence
All human Artists Tagged as Surname, Name – ie Jon Anderson is tagged Anderson, Jon
All non-person artists irrespective of number of names are Tagged as Surname only,  – i.e. Yes under Y, Black Sabbath is under B, Acid Mothers UFO as A
any bands

What I want is
—-
ABBA
Abrahams, Mick
Anderson, Jon
Black Sabbath
Bush, Kate
Corbel, Cecile
—-
What i get is
———
ABBA
Mick Abrahams
Jon Anderson
Black Sabbath
Kate Bush
Cecile Corbel
———————–