We need to be clear about thing before we get into this review for Opeth's fourteenth studio album The Last Will and Testament: Opeth isn't 'back' just because this album marks their return to the extreme progressive metal sounds of yesteryear. They never went away, and have produced a string of progressive rock based albums (the most recent two reintroducing metal ideas in a different manner) that proved that Mikael Åkerfeldt doesn't need to growl in order for Opeth to be Opeth. As a band, they are so much more than that. I for one was quite content with the direction they were going in. No band should be forced to make music they're not feeling just because the fans expect it.
With that said, it's also very difficult to not, after the sixteen years since Mikael last growled on an Opeth studio album (which was 2008's Watershed), not to be excited by the idea of a new Opeth album in their 'classic' style. The burning question is, of course, if The Last Will and Testament does that?
Well yes, it does, and more besides. The album's sound is like a coming together of the old and new, with plenty of different elements being thrown into what is once again a more extreme metal based sound. There's symphonic progressive rock elements which, for my money, appear the most extensively since Opeth's 2014 Pale Communion album. It also verges into more experimental/avant-garde territory and makes use of a bit of flute courtesy of Jethro Tull's Ian Anderson, so also provides some spoken word vocals. Spoken word is music is rather hit and miss for me, but this technique works on The Last Will and Testament by virtue of not being overdone. The album also contains more minor genre references including classical music and jazz rock. It sounds like old Opeth, but new Opeth is in here too. This isn't a throwback album, it's the culmination of their career to date.
As their first concept album since 1999's Still Life, The Last Will and Testament is structured to reflect a will reading. Except for the final song, A Story Never Told, which serves as an epilogue of sorts, the tracks are not named except to be referred to as paragraphs one through seven (denoted by the § symbol). This has the small drawback of not having a clear reference point which to refer to the songs by, but the songs are able to quickly assert themselves apart from each other all the same. Most make use of Åkerfeldt's growling vocals, except for §3 and A Story Never Told. The former is still a metal song but the later is the album's only full progressive rock song. This means that the growls are being used more than on Opeth's last extreme album Watershed which only had them in three out of seven songs. Compared to older Opeth though they've avoided any single songs that cross the ten minute barrier, going for more median lengths between five and seven-odd minutes.
All in all I think The Last Will and Testament is an excellent Opeth album. As a still new record I can't really say how I will feel about it in relation to their other albums a year or two from now, but as an extreme progressive metal album it sits in good company with their earlier work especially the period of Still Life through to Watershed, while also not ignoring that the prog rock era Opeth happened. I don't think this was an album made under fan pressure to go back to their more popular sound, more like Mikael Åkerfeldt began to feel this sort of music again, especially to tie into a concept record. It really is anyone's guess whether this will mark a permanent return to the style, but I don't think it matters either way. Opeth is a band with nothing to prove; they will do what they want and don't have to stick to a ridged style. That is, ultimately, what makes them an exciting band. I wouldn't rule out future observations sounding like either or of their distinct eras, or perhaps something new entirely.