I'm glad someone has mentioned Dark Magus already. The words rip off are far to strong, but lets just say that it's probably an album they've been listening to a lot lately.
Another thing I feel I should mention (because even after all this time, it seems a lot of people have still to get their heads around this one); the Mars Volta are NOT ATDI under a different name, and they never intended to be. They are a very different (and in my opinion, far superior) beast.
One last thing; they are the dreaded P word. Now, if I don't like a musical genre, I don't listen to it. However, people who don't like prog seem to want to listen to it in order to criticise it, which I just feel is immature. If you want to listen to a band like the Mars Volta, you should expect long tracks, you should expect noodling, and you should expect everything else that comes with the genre. To be fair, they don't push things half as far as they've been pushed in the past.
So, The Bedlam in Goliath then. It does feel like they've taken their music and trimmed all the "pointless" bits off, to leave a sort of low fat alternative. However, it's now that we can see exactly what the point of the "pointless" bits are: just a bit of a break from the insanity! TBiG starts, then it's a good 20 minutes of relentless intensity before you even get a chance to breathe. And then it's straight back into it! On the first few listens it was just far too much to take in at once, and because there's very little to contrast it, the insane bits don't seem to have the edge that they had in previous albums. It was all just a bit of a disappointment.
However, I was wrong to doubt them. A few more listens and the subtleties start to shine through. In my opinion the album could benefit from a bit more variety in intensity, but there's certainly no drop in musical standards. The guitaring is, as you would expect, outstanding; the drumming is breathtaking; and although featured a lot less in this album (much to my disappointment) the keys do shine through on occasion. As usual, it sounds like an ensemble playing where every member has their own conductor and their own agenda, but as usual it all works together in a way that would have any composer left scratching their head.
This album certainly isn't gonna win the band many new fans, but I don't think that ever really is the plan. Fans (especially ones of the last two albums) will probably love it (the reviews here seem to suggest that), and although there will be the cynical few who go out of their way to tell everyone how bad it is, the music stands up for itself (after the difficult first few listens anyway) as being another satisfactory chapter in the bands growing legacy.