Originally Posted by: jiujitsu_jesusDark Side is my favourite to play along with, but you asked for others, so:

1: Piper At the Gates of Dawn. Great fun to experiment with weird noises along with, and conventional riffing and soloing sounds good with it as well.
2: The Inner Mounting Flame by the Mahavishnu Orchestra.
3: The System Has Failed by Megadeth.

who does #1 on your list??