I just finished Katla, and that is remarkable because the majority of what I start on Netflix I stop shortly after (no problem, I can always find something more appealing). I have no memory of the score and that is also a good sign, because sometimes I stop watching just because I find the music unbearable.
The show is good, excellent photography, good acting, great shots of Iceland. The problem is the idea, that is a really a so common trend nowadays, there are so many shows with people that suddenly appear from the dead or from the past (and this is not a spoiler, it is what we see from the very beginning of the first episode.)
Question is: is there will be a second seasons. Personally, I am happy with just the first.