The problem with these sorts of questions is that for every one you name, there's always another one you'd like to include! And your own personal choice dictates what you choose.
Neil Diamond
John Denver
Lennon/McCartney
Rem
Samuel barber
Michael nyman (had to include him for the theme tune to "The piano")
But then, what about bands like Faith no more, the Counting crows, New order, Paul wellar, etc, etc, etc, etc, etc, etc!!!!!!
The list goes on forever.
