Okay, I have several of the unclued names (some solid, a few dodgy) with 3 to find, but I can’t fathom any connection between them other than mid-20th century tunesmiths. Gentle nudge requested, thanks.
So it’s just themed names from a to m, no other connection between them. Well, I’ve found names that fit the first letter so I’m putting this one to bed. Not hugely enjoyable, this one. Bit of an odd ‘un…