Six years is an unusually long time for fans to wait for a new Dream Theater live album, but this one has ‘major doozy’ written all over it from the start. The prog-metal titans’ last world tour was doubly celebratory, as they celebrated the 20th anniversary of one of their most loved records (Metropolis Part 2 – Scenes From A Memory) and the near-universal acclaim received for recent return-toform Distance Over Time.