Echo the Dolphin Easter Egg - Programmer Was a Music Fan

In the game startup area, you are invited to enter your continuation code, 8 random letters.
A well documented 'cheat' was to enter SANDCRAB to obtain unlimited air supply.
Out of boredom, I once typed in PINKFLOY and was taken to a new level.
I wondered what else might work. Lots!
As I had more fun finding these, than playing the game, I will let you try your own out.
TIP. Programmer was a bit of a 70's rock fan,but names/bands from later work too.
Also,NNNNNNNN takes you to 'Welcome to the Machine'