listen to any modern metal production, or any modern production in general, and there's several spots where you can tell that auto-tune was used - especially if you take into consideration the many variables of a) what their previous recordings sound like in the vocal department b) how they sing live c) studio documentaries showing the production just an example, anything that joey sturgis has worked on has autotune all over, due to the fact that these singers cannot sing in tune. seen opeth back on the gr tour twice as well as once on the watershed tour and he was off-key several times. even he, by his own admission, is not a perfect singer and is off-key, especially live, a lot. this is apparent more-so on the older records where clean vocal parts are buried under reverb and other effects to mask imperfections. perhaps I have used the wrong terminology, oh dear studio engineer, in saying "aligning it to the grid." but if you hadn't so cleverly skipped over my side-note in that same paragraph, you would have noticed that I specifically stated the use of tools like 100% correction in melodyne or the line tool in antares. perhaps I'm mistaken, but not once did I say that mikael cannot sing and needs to be tuned. you're speaking in absolute. I've stated, however, that mikael does go off-key quite a bit and when roadrunner is giving bogren a big fee to produce their records, I'm sure that it'd be unsatisfactory to not tune any off-key vocals (which mikael has acknowledged time and time again that he's not a perfect singer and goes off-key) "an actual engineer"? care to provide any engineering credits to back up your claim? otherwise it's just a red herring.