Formed by Dream Theater's guitarist John Petrucci, drummer Mike Portnoy; keyboardist Jordan Rudess (he would go on to join DT), and legendary bassist Tony Levin. This is some great instrumental prog rock! There are definite Jazz, Blues, Classical, and 70s-80s rock as influences. They have released two CDs. Try downloading 'Hourglass', 'Biaxident', 'Acid Rain', and 'Osmosis' for a start!