Knee 2 by Philip Glass Overview Tag Appears on 1976 - Einstein on the Beach Einstein on the Beach Einstein On The Beach Einstein on the Beach (CD1) Einstein on the Beach (disc 1) Einstein on the Beach: Highlights Einstein On The Beach (New Version) (Disc 1) Philip Glass & Robert Wilson - Einstein On The Beach - CD1 Spin Presents: Newermind Playcount 103 Listeners 42