I would have voted "La Villa Strangiato", or Cygnus 1, but Lamneth needs love too.
I highly recommend anyone that likes Tool's
Lateralus to check out Rush's
Test For Echo, particularly the title track Test For Echo. This is how I got into Rush. This whole album is brilliant. But Test For Echo was so good, Tool took influence/notice. Lateralus was always (one of) my favorite(s), and this is just
