"This is as well a masterpiece as their latest effort, Room V. Tyranny is often compared to Queensryche's Operation: Mindcrime, but I don't think that this is appropriate. Shadow Gallery is more prog, whereas Queensryche is more mainstream rock/metal. Let me clarify that I love Mindcrime as well and consider it to be a masterpiece, too. But it is more accessible than Tyranny, which takes some more time to grow on you.
Many friends of mine listened to it and then complained about it being boring, and all songs sound the same. It is true that Shadow Gallery (like Symphony X, for that matter) have their own sound, that they vary a little bit from song to song, but not as much as for example Dream Theater did on Images And Words or Awake.
But Tyranny is about killer melodies (the ballads, Spoken Words), stunning guitar/keyboard acrobatics (Stiletto in the Sand), and interesting and credible lyrics (New World Order). The musicians easily match the qualities of Romeo, Petrucci, Rudess and the likes. The singer is also very nice, although when you first hear the vocals you find the voice a little too unspectacular ... but it grows on you just like the whole package!"