Without looking at anyone else's answers first these are the ones I think I got:
1. Pete Abbott
10. Joe Topping
12. John Tams
15. Kieran Halpin
20. Judy Dinning
30. Julie Matthews
31. Tom Bliss
33. Anthony John Clarke
34. Stan Rogers
35. Leonard Cohen
38. Seth Lakeman

I suspect these are wrong but I know titles by these people:
22. Tom Petty
40. Neil Finn

I had a sneaky peek of the rest of the posts after looking at these and I'm completely ashamed I didn't get the Tanglefoot one! I hope they don't find out!

muppitz
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