Delia Derbyshire from the BBC Radiophonic workshop invented dance music in the mid to late sixties. Unfortunately nobody heard it until 2008.
https://www.youtube.com/watch?v=szE5D-dPs_Y
The PPMe album still has 6 of the 14 as covers. The Sound of [Billy] Fury has to be mentioned as his was the first Rock n Roll/ Pop album to hit with all his own songs on there.
So . . .
1) Velvet Underground & Nico
2) Sound of Fury
3) George Best because it's pure indiepop and was very...