Year of No Light struck a particular personal chord for me with their previous release Ausserwelt. Their unique blend of sludge, doom and post rock, all held together by a drone background and layers upon layers of dueling guitars, that album was a different kind monster (especially the first half).
The same formula is kept on Tocsin, with zero vocals and two drum sets as distinctive marks from these french lads, however its a slower, more brooding journey than Ausserwelt ever was. Tracks such as 'Desolation' and 'Stella Rectrix' serve the listener from a meditative point rather than anything else metal related and while all the elements are there to form a great album, I simply can't shake the feeling that they held back on the melodies somehow. Dare I say it, Tocsin feels like the second installment of a triptych, serving a higher purpose than it originally lets out.
With all that said, should you be interested in this release, you may want to also direct your attention to the aforementioned Ausserwelt. I'll leave a sample from each, just in case I've left you undecided about these guys.